2018 In Mammal Paleontology
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This paleomammalogy list records new fossil
mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...
taxa that were described during the year 2018, as well as notes other significant paleomammalogy discoveries and events which occurred during that year.


Mammals in general

* A study on the morphological diversity of vertebral regions in non-mammalian synapsids, and on its implication for elucidating the evolution of anatomically distinct regions of the mammalian spines, is published by Jones ''et al.'' (2018). * A study on the evolution of the mammalian jaw is published by Lautenschlager ''et al.'' (2018), who find no evidence for a concurrent reduction in jaw-joint stress and increase in bite force in key non- mammaliaform taxa in the
cynodont The cynodonts () (clade Cynodontia) are a clade of eutheriodont therapsids that first appeared in the Late Permian (approximately 260 mya), and extensively diversified after the Permian–Triassic extinction event. Cynodonts had a wide variety ...
–mammaliaform transition. * A study on the structure and origin of the braincase sidewalls of
monotreme Monotremes () are prototherian mammals of the order Monotremata. They are one of the three groups of living mammals, along with placentals (Eutheria), and marsupials (Metatheria). Monotremes are typified by structural differences in their brain ...
s, multituberculates and therians, based on data from extant and fossil mammals and non-mammalian
cynodont The cynodonts () (clade Cynodontia) are a clade of eutheriodont therapsids that first appeared in the Late Permian (approximately 260 mya), and extensively diversified after the Permian–Triassic extinction event. Cynodonts had a wide variety ...
s, is published by Crompton ''et al.'' (2018). * Vertebrate burrows, interpreted as most likely constructed by mammals, are described from the Salt Wash Member of the
Upper Jurassic The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the name ...
Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic, Upper Jurassic sedimentary rock found in the western United States which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandsto ...
( Utah, United States) by Raisanen & Hasiotis (2018), who name new ichnotaxa '' Daimonelix martini'' and '' Fractisemita henrii'' (the latter potentially representing the burrows of a social mammal). * A study on diversification dynamics of the three major mammalian clades (multituberculates,
metatheria Metatheria is a mammalian clade that includes all mammals more closely related to marsupials than to placentals. First proposed by Thomas Henry Huxley in 1880, it is a more inclusive group than the marsupials; it contains all marsupials as well ...
ns and eutherians) in North America across the Cretaceous/Palaeogene boundary is published by Pires ''et al.'' (2018). * A study on changes in mammalian faunal composition and structure during the earliest
Paleogene The Paleogene ( ; British English, also spelled Palaeogene or Palæogene; informally Lower Tertiary or Early Tertiary) is a geologic period, geologic period and system that spans 43 million years from the end of the Cretaceous Period million yea ...
biotic recovery, based on data from four localities in the Hell Creek Formation and Tullock Member of the
Fort Union Formation The Fort Union Formation is a geologic unit containing sandstones, shales, and coal beds in Wyoming, Montana, and parts of adjacent states. In the Powder River Basin, it contains important economic deposits of coal, uranium, and coalbed methane. ...
( Montana, United States), is published by Smith ''et al.'' (2018). * A high-resolution age model for mammalian turnover between the To2 and To3 substages of the
Torrejonian The Torrejonian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 63,300,000 to 60,200,000 years BP lasting . It is usually ...
across the
San Juan Basin The San Juan Basin is a geologic structural basin located near the Four Corners region of the Southwestern United States. The basin covers 7,500 square miles and resides in northwestern New Mexico, southwestern Colorado, and parts of Utah a ...
is presented by Leslie ''et al.'' (2018). * A study on the mammalian extinction selectivity, continental body size distributions, and taxonomic diversity over five time periods spanning the past 125,000 years is published by Smith ''et al.'' (2018), who report evidence indicating that larger species of mammals were at greater risk of extinction following the global expansion of hominins over the late Quaternary, and that the degree of size-selectivity of mammalian extinctions in this period was unprecedented in the past 65 million years of mammalian evolution. * A study on the relationship between extinctions of insular endemic mammal species in the Late Pleistocene and Holocene and their body mass, the size of the island and the first human arrival to the archipelago is published by Kouvari & van der Geer (2018). * A study on the relationship between diversification rates and climatic niche evolution in mammals is published by Castro-Insua ''et al.'' (2018). * A study on the dietary isotopic signatures recorded in tissues of herbivorous mammals, focusing on extant and fossil sloths, and evaluating the hypothesis that a single isotope enrichment pattern holds for all herbivorous mammals, is published by Tejada-Lara ''et al.'' (2018). * A study on the temporal changes in the spatial differentiation of mammal faunas in China during the
Cenozoic The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configura ...
, and on the timing of the emergence of the modern spatially structured mammal faunas in China, is published by He ''et al.'' (2018). * A study on the impact of discoveries of fossil mammals that preserve the ancestral or near-ancestral morphologies on resolution of differences between morphological and molecular estimates of mammal phylogeny is published by Beck & Baillie (2018).


Metatherians

* A study on the changes of the global diversity of
metatheria Metatheria is a mammalian clade that includes all mammals more closely related to marsupials than to placentals. First proposed by Thomas Henry Huxley in 1880, it is a more inclusive group than the marsupials; it contains all marsupials as well ...
ns through time based on a new dataset of metatherian fossil occurrences is published by Bennett ''et al.'' (2018). * Description of new dentary fossils referable to ''
Eodelphis ''Eodelphis'', from eo- plus /nowiki>''delphis''.html" ;"title="/nowiki>/nowiki>''delphis''">/nowiki>/nowiki>''delphis'', thus meaning "very early opossum", is a genus of stagodont metatherians from the Late Cretaceous of North America, with ...
browni'', and a study on the evolution of adaptations to durophagy in
stagodontids Stagodontidae is an extinct family of carnivorous metatherian mammals that inhabited North America and Europe during the late Cretaceous, and possibly to the Eocene in South America. Description Currently, the family includes four genera, ''E ...
, is published online by Brannick & Wilson (2018). * A study on the morphological diversity of sparassodonts and its implications for the structure of the terrestrial carnivore guild from the middle
Cenozoic The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configura ...
of South America is published by Croft ''et al.'' (2018). * Description of a partial skull of '' Allqokirus australis'' from the Paleocene
Santa Lucía Formation The Santa Lucía Formation is a Maastrichtian to Paleocene (Danian) geologic formation in Bolivia. Fossil ornithopod tracks have been reported from the Cretaceous lower part of the formation.Weishampel, et al., 2004, pp.517-607 It is the type form ...
(
Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...
) and a study on the phylogenetic relationships of this species is published by de Muizon ''et al.'' (2018), who name a new metatherian superorder Pucadelphyda. * A study on the age of thylacine and
Tasmanian devil The Tasmanian devil (''Sarcophilus harrisii'') (palawa kani: purinina) is a carnivorous marsupial of the family Dasyuridae. Until recently, it was only found on the island state of Tasmania, but it has been reintroduced to New South Wales in ...
fossils from the mainland
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
and their implications for estimating the time of extinction in mainland Australia for both species is published by White ''et al.'' (2018). * A study on the phylogeography and demographic history of the thylacine during the late Pleistocene and Holocene is published by White, Mitchell & Austin (2018). * A study on the phylogeography and demographic history of the Tasmanian devil across southern Australia over the last ≈30,000 years, based on genomes from 202 devils representing the extinct mainland and the extant Tasmanian populations, is published by Brüniche–Olsen ''et al.'' (2018). * A study on the phylogenetic relationships of ''
Palaeopotorous ''Palaeopotorous priscus'' is a fossil species of a diprotodont marsupial, known from specimens obtained in central Australia. The animal was similar to the modern species of the family Potoroidae, the potoroos and bettongs. Taxonomy The only ...
priscus'' is published by den Boer & Kear (2018), who interpret this taxon as a probable non- macropodoid macropodiform marsupial. * Revision of the taxonomic status of fossil kangaroo relatives attributed to the genera '' Ganawamaya'' and ''
Nambaroo ''Nambaroo'' is an extinct genus of macropod marsupial from the late Oligocene to the early Miocene of Australia.B.P. Kear; B.N. Cooke; M. Archer; T.F.Flannery (2007). Implications of a new species of the Oligo-Miocene kangaroo (Marsupialia: ...
'' is published by Butler ''et al.'' (2018), who also describe new fossil material of ''Ganawamaya couperi'' (formerly assigned to the genus ''Nambaroo''), ''Ganawamaya acris'' and ''G. aediculis''. * A study on evolution of kangaroos during the last 25 million years, based on data from fossil teeth, is published by Couzens & Prideaux (2018). * Description of hitherto missing elements in the skeleton of '' Thylacoleo carnifex'' and a study on the anatomy and biomechanics of the postcranial skeleton of this species is published by Wells & Camens (2018).


Eutherians

* A study on the causes of the increase of body size in aquatic mammals, based on data on the body masses of living and fossil mammals, is published by Gearty, McClain & Payne (2018). * A study on large mammal burrows from the Upper Miocene
Cerro Azul Formation The Cerro Azul Formation ( es, Formación Cerro Azul), in the Buenos Aires Province also described as Epecuén Formation, is a geological formation of Late Miocene (Tortonian, or Huayquerian in the SALMA classification) age in the Colorado Basin ...
( Argentina), aiming to infer their likely producers and to interpret the
taphonomic Taphonomy is the study of how organisms decay and become fossilized or preserved in the paleontological record. The term ''taphonomy'' (from Greek , 'burial' and , 'law') was introduced to paleontology in 1940 by Soviet scientist Ivan Efremov t ...
processes involved in the preservation of the burrow casts, is published by Cardonatto & Melchor (2018). * A study on the diet and habitat of the Hemphillian
equids Equidae (sometimes known as the horse family) is the taxonomic family of horses and related animals, including the extant horses, asses, and zebras, and many other species known only from fossils. All extant species are in the genus '' Equus'', w ...
''Calippus hondurensis'', ''
Dinohippus ''Dinohippus'' (Greek: "Terrible horse") is an extinct equid which was endemic to North America from the late Hemphillian stage of the Miocene through the Zanclean stage of the Pliocene (10.3—3.6 mya) and in existence for approximately . Fossi ...
mexicanus'' and ''
Protohippus ''Protohippus'' is an extinct three-toed genus of horse. It was roughly the size of a modern donkey. Fossil evidence suggests that it lived during the Late Miocene (Clarendonian to Hemphillian), from about 13.6 Ma to 5.3 Ma. Analysis of ''Proto ...
gidleyi'', the
gomphothere Gomphotheres are any members of the diverse, extinct taxonomic family Gomphotheriidae. Gomphotheres were elephant-like proboscideans, but do not belong to the family Elephantidae. They were widespread across Afro-Eurasia and North America during ...
''
Gomphotherium ''Gomphotherium'' (; "welded beast") is an extinct genus of proboscids from the Neogene and early Pleistocene of Eurasia, Africa, North America and Asia. As of 2021, two species, ''G. annectens'' and possibly ''G. subtapiroideum'', are also kno ...
hondurensis'', and the llama '' Hemiauchenia vera'' from San Gerardo de Limoncito (
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
) is published by Pérez-Crespo ''et al.'' (2018). * A study on the evolution and interconnectedness of the mammal faunas living in the
Old World The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by the ...
savannas in the
Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
is published by Kaya ''et al.'' (2018). * A study on the changes of the species richness of mammals from the Iberian Peninsula between 15 and 2 million years ago, and on the modulating role of different factors influencing that species richness, is published by Cantalapiedra, Domingo & Domingo (2018). * Systematic revision of the Miocene mammalian faunas of the Republic of Macedonia, known from fossils stored in the Macedonian Museum of Natural History, Skopje, is published by Spassov ''et al.'' (2018). * A study on the paleomagnetic chronology of the fossil-bearing strata and on the age of the late Miocene mammal fossils from the Xining basin ( Tibetan Plateau,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) is published by Hen ''et al.'' (2018). * Faith (2018) evaluates the aridity index, a widely used technique for reconstructing local paleoclimate and water deficits from oxygen isotope composition of fossil mammal teeth, arguing that in some taxa altered drinking behavior (influencing oxygen isotope composition of teeth) might have been caused by dietary change rather than water deficits. * A revision of the mammal fauna from the Miocene site of Bukwa ( Uganda) and a study on the age of this fauna is published by Cote ''et al.'' (2018), who interpret their finding as indicating that a significant faunal turnover may have occurred in East Africa between 20 and 19 million years ago. * A study on changes of the species- and genus-level diversity of large mammals in the Omo-Turkana Basin (eastern Africa) in the Pliocene and Pleistocene is published by Du & Alemseged (2018). * The primary description and analysis of the so-called GD A faunal assemblage from the
Gondolin Cave Gondolin Cave is a fossiliferous dolomitic paleocave system in the Northwest Province, South Africa. The paleocave formed in the Eccles Formation dolomites ( Malmani Subgroup, Chuniespoort Group carbonate-banded iron formation marine platform). G ...
( South Africa) is published by Adams (2018). * A study on the diet of large mammals from the Pleistocene sediments at
Olduvai Gorge The Olduvai Gorge or Oldupai Gorge in Tanzania is one of the most important paleoanthropology, paleoanthropological localities in the world; the many sites exposed by the gorge have proven invaluable in furthering understanding of early human ev ...
( Tanzania), as indicated by tooth wear and stable isotope data from fossil teeth, is published by Uno ''et al.'' (2018). * A study on the diet of the most abundant ungulate taxa from the Oldowan site HWK EE (Olduvai Gorge, Tanzania), as indicated by tooth wear and stable isotope analyses, is published by Rivals ''et al.'' (2018). * Description of new mammal and fish remains from the Olduvai Gorge site, comparing the mammal assemblage from this site to the present mammal community of Serengeti, and a study on their implications for reconstructing the paleoecology of this site at ~1.7–1.4 million years ago, is published by Bibi ''et al.'' (2018). * A study on the distance of seed dispersal by extant and extinct mammalian
frugivore A frugivore is an animal that thrives mostly on raw fruits or succulent fruit-like produce of plants such as roots, shoots, nuts and seeds. Approximately 20% of mammalian herbivores eat fruit. Frugivores are highly dependent on the abundance an ...
s and on the impact of the extinction of Pleistocene megafauna on seed dispersal is published by Pires ''et al.'' (2018). * A study on the diet and habitat of ungulates from the Middle Pleistocene site of Fontana Ranuccio ( Italy) as indicated by their tooth wear is published by Strani ''et al.'' (2018). * A study on the response of large ungulates to the palaeoenvironmental changes that occurred at the passage between the Gelasian and Calabrian in the Italian Peninsula, based on the dental wear patterns and hypsodonty of the ungulates from the fossil assemblage of Olivola (Aulla, Italy), is published by Strani ''et al.'' (2018). * A study on the ungulate and
carnivora Carnivora is a Clade, monophyletic order of Placentalia, placental mammals consisting of the most recent common ancestor of all felidae, cat-like and canidae, dog-like animals, and all descendants of that ancestor. Members of this group are f ...
n
carrying capacity The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available. The carrying capacity is defined as t ...
of the late Early and early Middle Pleistocene ecosystems of Europe is published by Rodríguez & Mateos (2018). * A study on the changes of vegetation in the temperate zone of Asia during an interval containing the Mid- Pleistocene Transition, ≈1.2–0.7 million years ago, as indicated by pollen data from a drilling core from the
North China Plain The North China Plain or Huang-Huai-Hai Plain () is a large-scale downfaulted rift basin formed in the late Paleogene and Neogene and then modified by the deposits of the Yellow River. It is the largest alluvial plain of China. The plain is bord ...
, as well as on their effect on the large mammal fauna is published by Xinying ''et al.'' (2018). * A study evaluating how the mammoth steppe ecosystem with its expected low vegetation productivity managed to support a high diversity and density of large mammalian herbivores during the
Last Glacial Maximum The Last Glacial Maximum (LGM), also referred to as the Late Glacial Maximum, was the most recent time during the Last Glacial Period that ice sheets were at their greatest extent. Ice sheets covered much of Northern North America, Northern Eur ...
is published by Zhu ''et al.'' (2018). * A study modeling spatial and temporal patterns of habitat suitability for 24 megafauna species and ''Homo sapiens'' in the Late Pleistocene in Eurasia is published by Carotenuto ''et al.'' (2018), who state that extinct herbivorous megafauna species were consistently rare within habitat patches optimal for humans. * A study on eastern African herbivore communities spanning the past 7 million years, aiming to test the hypothesis that tool-bearing, meat-eating hominins contributed to the demise of
megaherbivore Megaherbivores (Greek μέγας megas "large" and Latin ''herbivora'' "herbivore") are large terrestrial herbivores that can exceed in weight. This polyphyletic group of megafauna includes elephants, rhinos, hippos, and giraffes. The largest bo ...
s prior to the emergence of '' Homo sapiens'', is published by Faith ''et al.'' (2018). * A study on the age of the Pleistocene Linyi Fauna, and on its implications for establishing the chronological sequencing of the mammalian faunas on the Chinese Loess Plateau, is published by Qiu ''et al.'' (2018). * Studies on the structure of mammal communities from the
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
sites in the Anui River Basin and the Charysh River Basin are published by Agadjanian & Shunkov (2018). * A study on the morphology of the skulls of extant and extinct elephants and hippos, evaluating the hypothesis that the skulls of extinct island dwarf members of these groups were
pedomorphic Neoteny (), also called juvenilization,Montagu, A. (1989). Growing Young. Bergin & Garvey: CT. is the delaying or slowing of the Physiology, physiological, or Somatic (biology), somatic, development of an organism, typically an animal. Neoteny is ...
, is published by van der Geer ''et al.'' (2018). * The first evidence of
bear Bears are carnivoran mammals of the family Ursidae. They are classified as caniforms, or doglike carnivorans. Although only eight species of bears are extant, they are widespread, appearing in a wide variety of habitats throughout the Nor ...
s scavenging on
horses The horse (''Equus ferus caballus'') is a domesticated, one-toed, hoofed mammal. It belongs to the taxonomic family Equidae and is one of two extant subspecies of ''Equus ferus''. The horse has evolved over the past 45 to 55 million yea ...
in the South American fossil record is reported from the Pleistocene deposits of the Gruta do Urso cave ( Brazil) by Avilla ''et al.'' (2018). * A study on the population dynamics of North American humans and large mammals preceding
megafauna In terrestrial zoology, the megafauna (from Greek μέγας ''megas'' "large" and New Latin ''fauna'' "animal life") comprises the large or giant animals of an area, habitat, or geological period, extinct and/or extant. The most common threshold ...
l extinctions at the end of the Pleistocene, and on their implications for inferring the causes of extinction of large mammals in North America at the end of the Pleistocene, is published by Broughton & Weitzel (2018). * A study on a hybrid offspring of the grey seal and ringed seal born in 1929 in
Stockholm Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, largest city of Sweden as well as the List of urban areas in the Nordic countries, largest urban area in Scandinavia. Approximately 980,000 people liv ...
zoo, and on its implications for paleontological research, is published by Savriama ''et al.'' (2018), who evaluate whether fossil specimens with morphology intermediate between two taxa could potentially be hybrids, and estimate the overall hybridization potential in mammal evolution, including human ancestry.


Xenarthrans

* A study on the relationship between
humerus The humerus (; ) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a roun ...
shape and the modes of exploring substrate among extant and fossil members of Pilosa is published by de Oliveira & Santos (2018). * A study on the species distribution of 15 fossil xenarthrans from the late Pleistocene of South America is published by Varela ''et al.'' (2018). * A study on the micro wear patterns in the teeth of the
Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the ...
sloths '' Orophodon hapaloides'' and '' Octodontotherium grande'', as well its implications for inferring the diet of these taxa, is published by Kalthoff & Green (2018). * A study on the anatomy of the ear region in ''
Glossotherium ''Glossotherium'' is an extinct genus of mylodontid ground sloths of the subfamily Mylodontinae, which includes large ground-dwelling sloths. It represents one of the best known members of the family, along with ''Mylodon'' and ''Paramylodon''. ...
robustum'' and on the evolution of the inner ear anatomy in the xenarthrans is published by Boscaini ''et al.'' (2018). * A study on the internal morphology of the skull of ''
Glossotherium ''Glossotherium'' is an extinct genus of mylodontid ground sloths of the subfamily Mylodontinae, which includes large ground-dwelling sloths. It represents one of the best known members of the family, along with ''Mylodon'' and ''Paramylodon''. ...
robustum'' is published online by Boscaini ''et al.'' (2018). * A skull of a megatheriid sloth belonging to a member or a relative of the genus ''
Proeremotherium ''Proeremotherium'' is an extinct genus of megatheriine ground sloths in the family Megatheriidae. It lived during the Late Miocene and Early Pliocene of what is now Venezuela. So far, two largely complete skulls have been recovered in the Falcó ...
'' is described from the Pliocene San Gregorio Formation ( Venezuela) by Carlini ''et al.'' (2018). * A study on the fusion of anterior thoracic vertebrae in Pleistocene ground sloths is published online by Tambusso ''et al.'' (2018). * A study on the feet anatomy of the fossil sloths '' Megatherium'' and '' Eremotherium'', as well as its implications for inferring the degree to which their feet were habitually inverted, is published by Toledo ''et al.'' (2018). * New remains (skull and humeri) of ''
Megathericulus ''Megathericulus'' is an extinct genus of ground sloths in the Megatheriidae family. It lived during the Middle Miocene, 11-16 million years ago in what is now South America . Fossils have been found principally in Argentina, Bolivia, and Peru ...
patagonicus'' are described from the middle Miocene fossiliferous locality of Quebrada Honda (
Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...
) by Brandoni ''et al.'' (2018). * New fossil remains of ''Megatherium filholi'' are described from the late Pleistocene sediments of
Buenos Aires Province Buenos Aires (), officially the Buenos Aires Province (''Provincia de Buenos Aires'' ), is the largest and most populous Argentine province. It takes its name from the city of Buenos Aires, the capital of the country, which used to be part of th ...
( Argentina) by Agnolin ''et al.'' (2018), who revalidate ''M. filholi'' as a distinct species. * A study on the bone structure of the skull of '' Thalassocnus'' and on the evolution of bone mass increase in extinct aquatic sloths is published by Amson, Billet & de Muizon (2018). * A study on the ontogenetic, intraspecific and interspecific variations in the anatomy of the
occipital region The occipital bone () is a cranial dermal bone and the main bone of the occiput (back and lower part of the skull). It is trapezoidal in shape and curved on itself like a shallow dish. The occipital bone overlies the occipital lobes of the cereb ...
of the skulls of members of the family Mylodontidae from the late Pleistocene of Argentina is published by Brambilla & Ibarra (2018). * A study on the phylogenetic relationships of '' Mylodon darwinii'', based on mitogenomic and nuclear data, is published by Delsuc ''et al.'' (2018). * A study on the morphology and histology of
glyptodont Glyptodonts are an extinct subfamily of large, heavily armoured armadillos. They arose in South America around 48 million years ago and spread to southern North America after the continents became connected several million years ago. The best-kn ...
osteoderms from the Gruta do Urso cave ( Brazil), representing the first juvenile specimen of ''
Glyptotherium ''Glyptotherium'' (from Greek for 'grooved or carved beast') is a genus of glyptodont (an extinct group of large, herbivorous armadillos) that lived from the Early Pliocene, about 4.9 million years ago, to the Early Holocene, around 7,000 years ...
'' described from the Late Pleistocene of South America, is published by Luna ''et al.'' (2018). * Taxonomic revision of glyptodonts from Uruguay belonging to the tribe Plohophorini is published by Toriño & Perea (2018). * A study comparing the morphology of South American species of '' Glyptodon'' and ''
Glyptotherium ''Glyptotherium'' (from Greek for 'grooved or carved beast') is a genus of glyptodont (an extinct group of large, herbivorous armadillos) that lived from the Early Pliocene, about 4.9 million years ago, to the Early Holocene, around 7,000 years ...
'', in order to identify diagnostic differences and potential
synapomorphies In phylogenetics, an apomorphy (or derived trait) is a novel character or character state that has evolved from its ancestral form (or plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxa and is therefore hypothesized to have ...
, is published by Zurita ''et al.'' (2018). * A study on the anatomy of the hyoid apparatus of two glyptodontid specimens from Lujanian sediments of the Pampean Region ( Argentina), assigned to the genus '' Panochthus'', is published by Zamorano ''et al.'' (2018). * First cases of
parasitism Parasitism is a Symbiosis, close relationship between species, where one organism, the parasite, lives on or inside another organism, the Host (biology), host, causing it some harm, and is Adaptation, adapted structurally to this way of lif ...
by fleas and other cutaneous lesions on osteoderms,
carapace A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tor ...
and caudal tube fragments of large fossil cingulates, including '' Panochthus'', ''
Glyptotherium ''Glyptotherium'' (from Greek for 'grooved or carved beast') is a genus of glyptodont (an extinct group of large, herbivorous armadillos) that lived from the Early Pliocene, about 4.9 million years ago, to the Early Holocene, around 7,000 years ...
'' and ''
Pachyarmatherium ''Pachyarmatherium'' is a genus of extinct large armadillo-like cingulates found in North and South America from the Pliocene and Pleistocene epochs, related to the extant armadillos and the extinct pampatheres and glyptodonts. It was presen ...
'', are reported by de Lima & Porpino (2018).


Afrotherians

* A study on the anatomy and phylogenetic relationships of the elephant shrew '' Chambius kasserinensis'' based on known and newly described fossil remains from the Eocene of Tunisia is published by Tabuce (2018). * Description of the anatomy of middle and
inner ear The inner ear (internal ear, auris interna) is the innermost part of the vertebrate ear. In vertebrates, the inner ear is mainly responsible for sound detection and balance. In mammals, it consists of the bony labyrinth, a hollow cavity in the ...
s of the golden mole '' Namachloris arenatans'' from the Palaeogene of Namibia is published by Mason, Bennett & Pickford (2018). * A revision of sirenian fossils and taxa from the Miocene
Chesapeake Group The Chesapeake Group is a geologic group in Maryland, Virginia, Delaware, and North Carolina. It preserves mainly marine fossils dating back to the Miocene and Pliocene epochs of the Neogene period. This group contains one of the best studied fos ...
(eastern United States) is published by Domning (2018). * A method to estimate the body mass of extinct
proboscidea The Proboscidea (; , ) are a taxonomic order of afrotherian mammals containing one living family (Elephantidae) and several extinct families. First described by J. Illiger in 1811, it encompasses the elephants and their close relatives. From ...
ns on the basis of skull remains is presented by Jukar, Lyons & Uhen (2018). * A study on the evolution of the cheek teeth displacement mechanism in elephantiform proboscideans is published by Sanders (2018). * New fossil material of '' Choerolophodon corrugatus'' is described from the
Dhok Pathan Formation Duhok ( ku, دهۆک, translit=Dihok; ar, دهوك, Dahūk; syr, ܒܝܬ ܢܘܗܕܪܐ, Beth Nohadra) is a city in the Kurdistan Region of Iraq. It's the capital city of Duhok Governorate. History The city's origin dates back to the Stone ...
( Pakistan) by Abbas ''et al.'' (2018). * Phytoliths preserved in the
dental calculus In dentistry, calculus or tartar is a form of hardened dental plaque. It is caused by precipitation of minerals from saliva and gingival crevicular fluid (GCF) in plaque on the teeth. This process of precipitation kills the bacterial cells wit ...
of specimens of ''
Gomphotherium ''Gomphotherium'' (; "welded beast") is an extinct genus of proboscids from the Neogene and early Pleistocene of Eurasia, Africa, North America and Asia. As of 2021, two species, ''G. annectens'' and possibly ''G. subtapiroideum'', are also kno ...
connexum'' and ''Gomphotherium steinheimense'' from the Miocene Halamagai Formation (northern Junggar Basin,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) are described by Wu ''et al.'' (2018), who interpret their findings as indicating that ''G. connexum'' was an obligate browser or a mixed feeder, while ''G.steinheimense'' may have had a more grass-dominated feeding preference, and was the earliest-known proboscidean with a predominantly grazing habit. * A study on the diet and habitat of ''Notiomastodon platensis'' from Central Chile is published by González-Guarda ''et al.'' (2018). * A study on the diet of the Columbian mammoths,
pygmy mammoth The pygmy mammoth or Channel Islands mammoth (''Mammuthus exilis'') is an extinct species of dwarf elephant descended from the Columbian mammoth (''M. columbi'') of mainland North America. This species became extinct during the Quaternary extin ...
s and American mastodons as indicated by tooth wear is published by Smith & Desantis (2018). * Late Pleistocene proboscidean fossils, including fossils of '' Stegodon orientalis'' and the Asian elephant (''Elephas maximus''), are described from the Yangjiawan caves ( Jiangxi,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) by Tong ''et al.'' (2018). * A study evaluating the validity of the taxon ''
Archidiskodon meridionalis A mammoth is any species of the extinct elephantid genus ''Mammuthus'', one of the many genera that make up the order of trunked mammals called proboscideans. The various species of mammoth were commonly equipped with long, curved tusks and ...
gromovi'' is published by Baygusheva & Titov (2018). * A study on members of the genus ''Archidiskodon'' from the Lower Pleistocene sediments of the South of Western Siberia (Kuznetsk Basin), and their implications for early evolution of the ''Archidiskodon''–'' Mammuthus'' lineage, is published by Foronova (2018). * Redescription of the southern mammoth remains from the Pleistocene site of Huéscar-1 (Baza basin,
Granada Granada (,, DIN 31635, DIN: ; grc, Ἐλιβύργη, Elibýrgē; la, Illiberis or . ) is the capital city of the province of Granada, in the autonomous communities of Spain, autonomous community of Andalusia, Spain. Granada is located at the fo ...
, Spain), and a study on the implications of these remains for inferring the time and mode of the replacement of the southern mammoth by the
steppe mammoth The steppe mammoth (''Mammuthus trogontherii'', sometimes ''Mammuthus armeniacus'') is an extinct species of Elephantidae that ranged over most of northern Eurasia during the late Early and Middle Pleistocene, approximately 1.8 million-200,000 y ...
by the end of the Early Pleistocene, is published by Ros-Montoya ''et al.'' (2018). * A study on permafrost-preserved Siberian woolly mammoths, aiming to measure testosterone in the hair samples of the studied specimens, is published by Koren ''et al.'' (2018). * A study on the age and origin of the Berelyokh mammoth site in northeast Siberia is published by Lozhkin & Anderson (2018); the study is subsequently criticized by Pitulko ''et al.'' (2019). * A study on changes in woolly mammoth range in Europe during MIS 2 is published by Nadachowski ''et al.'' (2018). * A study on the life conditions of woolly mammoths from the Upper
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
site Kraków Spadzista ( Poland) is published by Haynes, Klimowicz & Wojtal (2018). * A study on changes in the specific niche of the woolly mammoth in the central East European plains shortly before their extinction, as indicated by data on the carbon and nitrogen isotope composition of mammoth bones from the Epigravettian site of
Mezhyrich Mezhyrich ( uk, Межиріч, also referred to as Mezhirich) is a village (''selo'') in central Ukraine. It is located in Cherkasy Raion (raion, district) of Cherkasy Oblast (oblast, province), near the point where the Rosava River flows into ...
and from contemporaneous and nearby sites of Buzhanka 2, Eliseevichi and Yudinovo, is published by Drucker ''et al.'' (2018). * An overview of parasite finds in woolly mammoth specimens is published by Serdyuk & Maschenko (2018). * A study on the importance of mammoths as a source of dietary omega-3 fatty acids in
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
societies, as indicated by data on fats from several frozen mammoths found in the permafrost of Siberia, and on the cultural significance of mammoths for hominins, is published by Guil-Guerrero ''et al.'' (2018). * A study on the evolutionary history of the family Elephantidae based on 14 genomes from extant and fossil elephantids and from the American mastodon is published by Palkopoulou ''et al.'' (2018).


Bats

* A review of the distribution of sesamoids in extant bats, as well as in Eocene bats ''
Onychonycteris ''Onychonycteris'' is the more primitive of the two oldest known monospecific genera of bat, having lived in the area that is current day Wyoming during the Eocene period, 52.5 million years ago. Taxonomy Two specimens of ''Onychonycteris'' we ...
finneyi'' and ''
Icaronycteris ''Icaronycteris'' is an extinct genus of microchiropteran (echolocating) bat that lived in the early Eocene, approximately , making it the earliest known definitive bat. Four exceptionally preserved specimens, among the best preserved bat fossils ...
index'', is published by Amador ''et al.'' (2018). * A study on the phylogeny of extant and fossil short-faced bats ( leaf-nosed bats belonging to the subfamily
Stenodermatinae Stenodermatinae is a large subfamily of bats in the family Phyllostomidae. List of species Subfamily Stenodermatinae *Genus: ''Ametrida'' **Little white-shouldered bat, ''Ametrida centurio'' *Genus: ''Ardops'' **Tree bat, ''Ardops nichollsi'' *G ...
and the subtribe Stenodermatina) and on the ancestral distributions of the group, evaluating whether this group was more likely to originate on Antilles or on the American mainland, is published by Tavares ''et al.'' (2018). * An exceptionally preserved adult specimen of Egyptian fruit bat, morphologically more similar to Egyptian than to East African or Middle Eastern populations, is described from the early Holocene deposits in Hoq Cave ( Socotra Island, Yemen) by Van Damme ''et al.'' (2018).


Odd-toed ungulates

* A study on the temporal and spatial distribution of
Paleogene The Paleogene ( ; British English, also spelled Palaeogene or Palæogene; informally Lower Tertiary or Early Tertiary) is a geologic period, geologic period and system that spans 43 million years from the end of the Cretaceous Period million yea ...
odd-toed ungulate species from the
Erlian Basin Erlian may refer to: * Erlian, an alternative name for Erenhot Erenhot ( mn, ; , commonly shortened to Ereen or Erlian) is a county-level city of the Xilin Gol League, in Inner Mongolia Autonomous Region, located in the Gobi Desert along t ...
(
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) is published by Bai ''et al.'' (2018). * Tooth anomalies in two juvenile specimens of the Miocene rhinoceros ''
Prosantorhinus ''Prosantorhinus'' is an extinct genus of rhinoceros from the lower and middle Miocene. The small teleoceratine rhinocerotid was found in western Europe and Asia. Description ''Posantorhinus'' was a similarly sized animal to the Sumatran rhino ...
germanicus'' are described by Böhmer & Rössner (2018), who discuss probable causes of these anomalies. * A jaw of '' Stephanorhinus kirchbergensis'' is described from the Mus Khaya locality on the Yana River in the
Sakha Republic Sakha, officially the Republic of Sakha (Yakutia),, is the largest republic of Russia, located in the Russian Far East, along the Arctic Ocean, with a population of roughly 1 million. Sakha comprises half of the area of its governing Far Eas ...
( Russia) by Shpansky & Boeskorov (2018), representing the northernmost occurrence of this species; the authors also interpret ''Coelodonta jacuticus'' as the
junior synonym The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linna ...
of the woolly rhinoceros (''Coelodonta antiquitatis''). * A study on the morphology of the postcranial skeleton of ''
Teleolophus ''Teleolophus'' is an extinct genus of herbivorous mammals related to tapirs that flourished in the Eocene of Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own righ ...
'', based on new remains from the Eocene of
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
, is published by Bai, Wang & Meng (2018). * A study on the diet of the Miocene rhinoceros '' Diceros gansuensis'', as indicated by data from
starch Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diets ...
granules found in
dental calculus In dentistry, calculus or tartar is a form of hardened dental plaque. It is caused by precipitation of minerals from saliva and gingival crevicular fluid (GCF) in plaque on the teeth. This process of precipitation kills the bacterial cells wit ...
of a specimen from the Miocene Linxia Basin (
Gansu Gansu (, ; alternately romanized as Kansu) is a province in Northwest China. Its capital and largest city is Lanzhou, in the southeast part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibet ...
,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
), is published by Chen ''et al.'' (2018). * New fossil material of '' Elasmotherium peii'' is described from the Lower Pleistocene of the Shanshenmiaozui site (
Nihewan Basin Xiaochangliang () is the site of some of the earliest paleolithic remains in East Asia, located in the Nihewan (泥河灣) Basin in Yangyuan County, Hebei, China, most famous for the stone tools discovered there. Stone tools The tool forms disco ...
,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) by Tong, Chen & Zhang (2018). * A study on the digit reduction in the evolution of horses is published by Solounias ''et al.'' (2018). * A study testing for the presence of broad-scale habitat partitioning in fossil horses of North America is published by Parker, McHorse & Pierce (2018). * A revised diagnosis and a description of the anatomy of the Miocene hipparionine species '' Sivalhippus ptychodus'' and ''S. platyodus'' from
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
is published by Sun ''et al.'' (2018). * A study on the ontogeny (mineralization, eruption, and replacement patterns) of postcanine teeth of members of the genus ''
Hipparion ''Hipparion'' (Greek, "pony") is an extinct genus of horse that lived in North America, Asia, Europe, and Africa during the Miocene through Pleistocene ~23 Mya—781,000 years ago. It lived in non-forested, grassy plains, shortgrass prairie or st ...
'' from Cerro de los Batallones ( Spain) is published by Domingo ''et al.'' (2018). * A study on the bone growth pattern of different-sized hipparionins as indicated by bone histology, and on its implications for inferring the possible mechanisms and causes underlying trends in size reduction of European hipparions in the late Miocene, is published by Orlandi-Oliveras ''et al.'' (2018). * Review of fossils of members of the family Equidae from the Pleistocene site of lac Karâr ( Algeria) is published by Sam (2018). * A study on the diet and habitat of Pleistocene members of the genera ''
Equus Equus may refer to: * ''Equus'' (genus), a genus of animals including horses, donkeys and zebras * ''Equus'' (play), a play by Peter Shaffer * ''Equus'' (film), a film adaptation of the Peter Shaffer play * Equus (comics), a comic book characte ...
'' and '' Hippidion'' from southern United States, Mexico and South America, as indicated by carbon and oxygen isotopic data, is published by Pérez-Crespo ''et al.'' (2018). * A study evaluating how the geographic distribution of horses changed through time in the Late Pleistocene and Holocene, based on paleontological and archeological horse finds across the whole of Eurasia evaluated in association with paleoclimatic and paleoenvironmental reconstructions for the Late Quaternary, is published by Leonardi ''et al.'' (2018).


Even-toed ungulates

* A study evaluating whether tooth measurements of the kind typically used in the systematics of
Merycoidodontoidea Merycoidodontoidea, sometimes called "oreodonts" or "ruminating hogs", is an extinct superfamily of prehistoric cud-chewing artiodactyls with short faces and fang-like canine teeth. As their name implies, some of the better known forms were gen ...
can diagnose between related, similarly sized even-toed ungulates is published by Emery-Wetherell & Davis (2018). * Description of the fossil material of the camel species ''
Camelus thomasi ''Camelus thomasi'' (also known as Thomas' Camel) is an extinct species of camel from the Early-Mid Pleistocene of North Africa. It is known primarily from Tighennif (Ternifine) in Algeria, as well as Sudan. Fossils from Israel dated to the Late P ...
'' from the Pleistocene locality of
Tighennif Tighennif is a town and commune in Mascara Province, Algeria. According to the 2002 census it has a population of 55,800. Personalities *Ternifine or Tighennif is the home of a fossil human jawbone dating to the Middle Pleistocene, which French ...
( Algeria) and a study on the phylogenetic relationships of this species is published by Martini & Geraads (2018). * A study on the diet of extinct peccaries in Florida from the late Miocene throughout the Pleistocene, as indicated by tooth microwear and stable carbon isotopes, is published by Bradham ''et al.'' (2018). * Fossils of the peccaries '' Mylohyus elmorei'' and ''
Prosthennops ''Prosthennops'' is a genus of extinct peccaries that lived in North and Central America between the middle Miocene and lower Pliocene (around 15-5 million years ago). Description This animal was very similar to present-day peccaries, both ...
serus'' are described from the Gray Fossil Site ( Tennessee, United States) by Doughty ''et al.'' (2018), representing the first occurrence of these species from the Appalachians reported so far. * Partial skull of a suid assigned to the genus '' Metridiochoerus'' is described from the
Malapa Fossil Site Malapa is a fossil-bearing cave located about northeast of the well known South African hominid-bearing sites of Sterkfontein and Swartkrans and about north-northwest of Johannesburg, South Africa. It is situated within the Cradle of Humank ...
(South Africa) by Lazagabaster ''et al.'' (2018). * Description of a new mandible of '' Sus strozzii'' from the Early Pleistocene of Pantalla (central Italy), as well as a study on the phylogenetic relationships of living and fossil Eurasian and African members of Suinae, is published by Cherin ''et al.'' (2018). * A study on the evolution of hypsodonty in ruminants as indicated by phylogeny of ruminants, estimated ancestral ruminant diets and habitats, and fossil record of grasslands is published by Toljagić ''et al.'' (2018). * A study comparing the exclusivity and magnitude of changes in diversification rates during the evolution of ruminants and other lineages of placental mammals is published by Rossi, Mello & Schrago (2018). * Fossils of the chevrotain ''
Dorcatherium ''Dorcatherium'' is an extinct genus of tragulid ruminant which existed in Europe, East Africa and the Siwaliks during the Miocene and Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5 ...
crassum'', including a skull and teeth remains, are described from the Miocene ( Langhian) of the Faluns Auger quarry ( Contres, France) by Mennecart ''et al.'' (2018). * Croitor, Sanz & Daura (2018) report the findings from a morphological and demographic analysis of remains of the endemic deer ''
Haploidoceros ''Haploidoceros'' is an extinct genus of deer that lived in Europe during the Pleistocene. It contains a single species, ''Haploidoceros mediterraneus''. Fossils have been found mainly in France, as well as the Iberian peninsula. Taxonomy ''Hap ...
mediterraneus'' from the Late Pleistocene of the Cova del Rinoceront ( Spain). * A study on the feeding habits of '' Morenelaphus'' as indicated by tooth enamel microwear is published by Rotti ''et al.'' (2018). * A study on the dietary plasticity of specimens of '' Eucladoceros ctenoides'' from eight middle and late
Villafranchian Villafranchian age ( ) is a period of geologic time (3.5–1.0 Ma) spanning the Late Pliocene and Early Pleistocene used more specifically with European Land Mammal Ages. Named by Italian geologist Lorenzo Pareto for a sequence of terrestrial s ...
localities in Europe, as indicated by tooth microwear, is published by Berlioz ''et al.'' (2018). * Antler remains of the wapiti (''Cervus canadensis'') are described from the Late
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
site of Climăuți II ( Moldova) by Croitor & Obada (2018), confirming the presence of wapiti in the Late Pleistocene of western Eurasia. * Pfeiffer-Deml (2018) raises fossil fallow deer ''Dama dama geiselana'' to the rank of a separate species '' Dama geiselana'', and compares its antler and skeletal characteristics with other fossil and recent fallow deers. * A study on the diet of the Irish elk (''Megaloceros giganteus''), as indicated by data from
masticated Chewing or mastication is the process by which food is crushed and ground by teeth. It is the first step of digestion, and it increases the surface area of foods to allow a more efficient break down by enzymes. During the mastication process, th ...
plant remains preserved in deep folds of a molar found in sandy deposits of the North Sea, is published by van Geel ''et al.'' (2018). * Description of new fossils of '' Propalaeoryx stromeri'' from the Miocene of Namibia, redescription of the skull anatomy of ''Propalaeoryx'' and a study on the phylogenetic relationships of this taxon is published by Sánchez ''et al.'' (2018). * A study on the dietary preferences of extant and fossil members of the family Giraffidae as indicated by teeth microwear is published by Merceron, Colyn & Geraads (2018). *
Giraffe The giraffe is a large African hoofed mammal belonging to the genus ''Giraffa''. It is the tallest living terrestrial animal and the largest ruminant on Earth. Traditionally, giraffes were thought to be one species, ''Giraffa camelopardalis ...
tracks are described from the Pleistocene Waenhuiskrans Formation (Bredasdorp Group, South Africa) by Helm ''et al.'' (2018), increasing known historical range of giraffes. * A study on the diet and habitat of '' Leptomeryx'' from the Eocene (
Uintan The Uintan North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 46,200,000 to 42,000,000 years BP lasting . It falls within the ...
) Yolomécatl Formation ( Mexico) as indicated by tooth enamel carbon and oxygen isotopic relationships will be published by Ferrusquía-Villafranca ''et al.'' (2018). * A study on the dietary preferences of members of the tribe Tragelaphini from the Plio-Pleistocene Shungura Formation (Lower
Omo Omo or OMO may refer to: Geography Ethiopia * Omo River (Ethiopia), in southern Ethiopia is the largest Ethiopian river outside the Nile Basin and namesake for all the topics below * Omo Nada, one of the woredas in the Oromia Region of Ethiopia ...
Valley, Ethiopia) as indicated by their tooth wear is published by Blondel ''et al.'' (2018). * Description of the late Miocene gazelle fossils from the Qingyang area (
Gansu Gansu (, ; alternately romanized as Kansu) is a province in Northwest China. Its capital and largest city is Lanzhou, in the southeast part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibet ...
,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
), and a review of the taxonomy of gazelle species known from this area, is published by Li ''et al.'' (2018). * A study on the dietary ecology of '' Antidorcas bondi'' (an extinct relative of the springbok) is published by Ecker & Lee-Thorp (2018). * A study on the impact of climate changes on the evolution of body size of members of the genus ''
Bison Bison are large bovines in the genus ''Bison'' (Greek: "wild ox" (bison)) within the tribe Bovini. Two extant and numerous extinct species are recognised. Of the two surviving species, the American bison, ''B. bison'', found only in North Ame ...
'' based on the data from extant and fossil bisons is published by Martin, Mead & Barboza (2018). * A study on the dietary preference and habitat use of three Mexican samples of '' Bison antiquus'', as indicated by tooth wear, is published by Díaz-Sibaja ''et al.'' (2018). * A study on mandibular shape variation in extant bovids with different feeding preferences, and on its implications for inferring dietary adaptations of fossil bovids from the Upper Laetolil Beds and Upper Ndolanya Beds of Laetoli ( Tanzania) and the degree of vegetation cover at Laetoli during early hominin occupation, is published by Forrest, Plummer & Raaum (2018). * A study evaluating when the island of
Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...
( Indonesia) gained its modern shape and size, and determining the timings of diversification of the three largest endemic mammals on the island (the babirusa, the
Celebes warty pig The Celebes warty pig (''Sus celebensis''), also called Sulawesi warty pig or Sulawesi pig, is a species in the pig genus ('' Sus'') that lives on Sulawesi in Indonesia. It survives in most habitats and can live in altitudes of up to . It has bee ...
and the anoa) is published by Frantz ''et al.'' (2018).


Cetaceans

* A study assessing the
lumbar In tetrapod anatomy, lumbar is an adjective that means ''of or pertaining to the abdominal segment of the torso, between the diaphragm and the sacrum.'' The lumbar region is sometimes referred to as the lower spine, or as an area of the back i ...
mobility in
archaeocetes Archaeoceti ("ancient whales"), or Zeuglodontes in older literature, is a paraphyletic group of primitive cetaceans that lived from the Early Eocene to the late Oligocene (). Representing the earliest cetacean radiation, they include the initial ...
is published by Bebej & Smith (2018). * A study on the anatomy of the auditory region of the skull of protocetids as indicated by fossils from the Eocene of Togo is published by Mourlam & Orliac (2018). * A study on the teeth complexity across fossil and living cetaceans, attempting to identify a trend toward dental simplicity through the
Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
, is published by Peredo, Peredo & Pyenson (2018). * A quantitative analysis and a study on the evolution of cranial telescoping (sliding of facial bones over each other, in much the same way as long sections of telescope slide over shorter sections) in toothed whales is published by Churchill ''et al.'' (2018). * A study on the morphology of the bony labyrinth in extant and fossil toothed whales is published by Costeur ''et al.'' (2018), who interpret their findings as indicating that the bony labyrinth provides key information both about phylogeny and habitat preferences of members of this group of cetaceans. * New fossils of members of the genus ''
Agorophius ''Agorophius'' is an extinct genus of toothed whale that lived during the Oligocene period, approximately , in the waters off what is now South Carolina. Taxonomy The holotype of ''Agorophius pygmaeus'', MCZ 8761, was first mentioned in an 1848 ...
'' are described from the
Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the ...
Chandler Bridge Formation The Chandler Bridge Formation is a geologic formation in South Carolina. It preserves fossils dating back to the Chattian (Late Oligocene) of the Paleogene period, corresponding to the Arikareean in the NALMA classification.
( South Carolina, United States) by Boessenecker & Geisler (2018), providing new information on ontogenetic variation and sensory anatomy in ''Agorophius''. * A study on the life history and ecology of
Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
members of Physeteroidea known from the Lee Creek Mine ( North Carolina, United States) based on the examination of their teeth is published by Gilbert, Ivany & Uhen (2018). * Description of postcranial remains of the
stem Stem or STEM may refer to: Plant structures * Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang * Stipe (botany), a stalk to support some other structure * Stipe (mycology), the stem of a mushro ...
-
beaked whale Beaked whales (systematic name Ziphiidae) are a family of cetaceans noted as being one of the least known groups of mammals because of their deep-sea habitat and apparent low abundance. Only three or four of the 24 species are reasonably well-k ...
''
Messapicetus ''Messapicetus'' is an extinct genus of beaked whale from the Late Miocene. It currently holds two species, ''M. longirostris'' from the Tortonian of Italy and ''M. gregarius'' from the Pisco Formation of Peru. However, a third unnamed species is ...
gregarius'' from the Miocene ( Tortonian) of Peru is published by Ramassamy ''et al.'' (2018), who also propose a reconstruction of the musculature of the neck and forelimb of the species. * An almost complete skull of ''
Llanocetus ''Llanocetus'' ( "Llano's whale" ) is a genus of extinct toothed baleen whales from the Late Eocene of Antarctica. The type species, ''Llanocetus denticrenatus'', reached gigantic proportions, with the juvenile specimen reaching an estimated i ...
denticrenatus'' is described from the Eocene
La Meseta Formation The La Meseta Formation is a sedimentary sequence deposited during the Eocene. The formation is found on Seymour Island, Antarctica. Description La Meseta Formation lies unconformably on the Cretaceous Lopez de Bertodano Formation. It is an app ...
( Antarctica) by Fordyce & Marx (2018), who also study the phylogenetic relationships and likely feeding strategy of this species, as well as its implications for inferring the origin of baleen and gigantism in baleen whales. * A study on the morphology of the membranous labyrinth in extinct and extant baleen whales and their ancestors, focusing on Late Miocene baleen whales from
Adygea The Republic of Adygea (; russian: Республика Адыгея, Respublika Adygeya, p=ɐdɨˈɡʲejə; ady, Адыгэ Республик, ''Adıgə Respublik''), also known as the Adyghe Republic, is a republic of Russia. It is situated ...
( Russia), is published by Tarasenko ''et al.'' (2018). * An ontogenetically young specimen of ''
Herpetocetus ''Herpetocetus'' is a genus of cetotheriid mysticete in the subfamily Herpetocetinae. Taxonomy There are four recognized species of ''Herpetocetus'': ''H. scaldiensis'', ''H. transatlanticus'',Whitmore, F.C., and L.G. Barnes. 2008. The Herpet ...
'' is described from the lower part of the Horokaoshirarika Formation ( Hokkaido,
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
) by Tanaka & Watanabe (2018), representing the only record of Miocene Herpetocetinae from the western Pacific reported so far. * Partial
periotic bone The periotic bone is the single bone that surrounds the inner ear of mammals. It is formed from the fusion of the prootic, epiotic, and opisthotic bones. References External links * http://www.encyclopedia.com/doc/1O8-perioticbone.html ...
of a member of the genus '' Caperea'' is described from the latest Miocene of southern
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
by Marx ''et al.'' (2018), representing the oldest record of this genus reported so far. * A study on the anatomy of cochleae of extant and extinct cetaceans, the relationships of cochlear shape and the frequency ranges heard by cetaceans, and their implications for determining the occurrence of very low frequency and infrasonic hearing in fossil
baleen whale Baleen whales (systematic name Mysticeti), also known as whalebone whales, are a parvorder of carnivorous marine mammals of the infraorder Cetacea (whales, dolphins and porpoises) which use keratinaceous baleen plates (or "whalebone") in their ...
s is published by Ritsche ''et al.'' (2018). * Oxygen-isotope analysis of a
whale barnacle Whale barnacles are species of acorn barnacle that belong to the family Coronulidae. They typically attach to baleen whales, and sometimes settle on toothed whales. The whale barnacles diverged from the turtle barnacles about three million year ...
specimen collected from early Pleistocene deposits of
Apulia it, Pugliese , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , demographic ...
( Italy) is published by Collareta ''et al.'' (2018), who interpret their findings as indicating that the barnacle lived on a cetacean that seasonally migrated towards high-latitude areas outside the Mediterranean.


Carnivorans

* A systematic examination of members of the family
Canidae Canidae (; from Latin, ''canis'', "dog") is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade. A member of this family is also called a canid (). There are three subfamilies found within th ...
from the Hemphillian
Mehrten Formation The Mehrten Formation is a geologic formation in California. It preserves fossils dating back to the Neogene period. See also * List of fossiliferous stratigraphic units in California * Paleontology in California Paleontology in California re ...
( California, United States) is published by Balisi ''et al.'' (2018). * A study evaluating whether body size and the occurrence of skull and teeth traits related to the dietary specialization were correlated with species duration and locality coverage in North American canids over 40 million years of their evolution is published by Balisi, Casey & Van Valkenburgh (2018). * A study on the teeth microwear in extant gray wolves and
coyote The coyote (''Canis latrans'') is a species of canis, canine native to North America. It is smaller than its close relative, the wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecologica ...
s, and its implications for dietary studies of extant and fossil canids, is published by Tanis, DeSantis & Terry (2018). * Description of a sample of coprolites from the Upper Miocene Mehrten Formation (California, United States), likely produced by '' Borophagus parvus'', and a study on their implications for inferring the diet of this species, is published by Wang ''et al.'' (2018). * Revision of the taxonomy and relative age of the Javanese canid fossils will be published by van der Geer, Lyras & Volmer (2018). * A study on the phylogenetic relationships of extant and fossil members of the subfamily Caninae is published by Zrzavý ''et al.'' (2018). * Description of new fossils of members of the genus '' Nyctereutes'' from the Pliocene site of Layna ( Spain), and a study on their implications for inferring the evolutionary history of ''Nyctereutes'' in Eurasia, is published by Bartolini Lucenti, Rook & Morales (2018). * Fossil footprint of a jackal-like predator is described from the Sorbas Member of the Sorbas Basin ( Spain) by McCann ''et al.'' (2018). * Revision of fossils attributed to the species '' Canis variabilis'' and a study on the
morphotype In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also referred to as alternative ''phenotypes'', in the population of a species. To be classified as such, morphs must occupy the same habitat at the s ...
variability of the Pleistocene members of the genus '' Canis'' is published by Jiangzuo ''et al.'' (2018), who considered ''C. variabilis'' to be a subspecies of '' Canis mosbachensis''. * A study on the morphological diversity of the limb bones of fossil and modern North American gray wolves is published by Tomiya & Meachen (2018). * A study on the morphological and
morphometric Morphometrics (from Greek μορϕή ''morphe'', "shape, form", and -μετρία ''metria'', "measurement") or morphometry refers to the quantitative analysis of ''form'', a concept that encompasses size and shape. Morphometric analyses are co ...
variability of late Pleistocene gray wolves from Avetrana ( Italy) in comparison to other populations from northern and southern Italy, as well as from other localities in Europe, is published by Mecozzi & Bartolini Lucenti (2018). * A study on the evolutionary history of the domestic dogs living in the Americas before the arrival of European colonists, based on data from sequenced mitochondrial and nuclear genomes from ancient North American and Siberian dogs from time frames spanning ≈9000 years, is published by Ní Leathlobhair ''et al.'' (2018). * A study on the mitochondrial DNA sequences of ancient dogs from 37 archaeological sites across Eurasia (from the Upper
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
to the Bronze Age), testing the hypothesis that dogs associated with
Near East The ''Near East''; he, המזרח הקרוב; arc, ܕܢܚܐ ܩܪܒ; fa, خاور نزدیک, Xāvar-e nazdik; tr, Yakın Doğu is a geographical term which roughly encompasses a transcontinental region in Western Asia, that was once the hist ...
ern farmers were brought into Europe alongside other domestic animals during the Neolithic, is published by Ollivier ''et al.'' (2018). * A study on the age of
dingo The dingo (''Canis familiaris'', ''Canis familiaris dingo'', ''Canis dingo'', or ''Canis lupus dingo'') is an ancient (Basal (phylogenetics), basal) lineage of dog found in Australia (continent), Australia. Its taxonomic classification is de ...
bones from Madura Cave on the Nullarbor Plain (
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
), and its implications for inferring the likely rate of dingo spread throughout Australia from their point of arrival, is published by Balme, O'Connor & Fallon (2018). * The complete mitochondrial genome of a ~22,000-year-old
giant panda The giant panda (''Ailuropoda melanoleuca''), also known as the panda bear (or simply the panda), is a bear species endemic to China. It is characterised by its bold black-and-white coat and rotund body. The name "giant panda" is sometimes us ...
specimen from the Cizhutuo Cave (
Leye County Leye County () is a county in the northwest of Guangxi Zhuang Autonomous Region, China. It is under the administration of Baise city. Climate Discoveries * In May 2022, a team of cave explorers discovered a giant sinkhole with hidden fores ...
,
Guangxi Guangxi (; ; Chinese postal romanization, alternately romanized as Kwanghsi; ; za, Gvangjsih, italics=yes), officially the Guangxi Zhuang Autonomous Region (GZAR), is an Autonomous regions of China, autonomous region of the People's Republic ...
,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) is sequenced by Ko ''et al.'' (2018). * A study on the age of the fossil remains of short-faced bears (''Arctodus simus'') and brown bears (''Ursus arctos'') from Pellucidar Cave ( Vancouver Island, Canada) is published by Steffen & Fulton (2018). * A study on the living conditions of Pleistocene bears (belonging to the species '' Ursus ingressus'') from
Jaskinia Niedźwiedzia Kletno Bear Cave ( pl, Jaskinia Niedźwiedzia w Kletnie) is the longest cave located in the Śnieżnik Mountains, which are part of the greater Sudeten mountain range. It was discovered in 1966, near the village of Kletno in Poland. It is famous f ...
(Bear Cave) in Kletno ( Poland) as indicated by the frequency of Harris lines in their bones is published by Nowakowski (2018). * A study on the diet of the cave bears from four
MIS 3 Marine isotope stages (MIS), marine oxygen-isotope stages, or oxygen isotope stages (OIS), are alternating warm and cool periods in the Earth's paleoclimate, deduced from oxygen isotope data reflecting changes in temperature derived from data ...
sites in the
Carpathian Mountains The Carpathian Mountains or Carpathians () are a range of mountains forming an arc across Central Europe. Roughly long, it is the third-longest European mountain range after the Urals at and the Scandinavian Mountains at . The range stretches ...
, based on isotopic data, is published by Robu ''et al.'' (2018). * Multifold coverage genomic data from four Late Pleistocene cave bears is presented by Barlow ''et al.'' (2018), who report that cave bears hybridized with brown bears during the Pleistocene, and that segments of cave bear DNA still persist in the genomes of living brown bears. * A revision of bear fossils from Zhoukoudian is published by Jiangzuo ''et al.'' (2018), who unambiguously confirm the presence of ''Ursus deningeri'' in Loc. 1 of Zhoukoudian. * A study on the bone histology of cave bear femora, and on its implications for inferring growth and life history variables of cave bears, is published by Veitschegger ''et al.'' (2018). * A study on the
morphometric Morphometrics (from Greek μορϕή ''morphe'', "shape, form", and -μετρία ''metria'', "measurement") or morphometry refers to the quantitative analysis of ''form'', a concept that encompasses size and shape. Morphometric analyses are co ...
variability of the mandibles of cave and brown bears and their ancestors ('' Ursus minimus'' and '' Ursus etruscus'') is published by Baryshnikov, Puzachenko & Baryshnikova (2018). * A study on the dynamics of lineage diversification and diversity of body mass and length in the evolution of musteloid carnivorans based on data from extant and fossil taxa is published by Law, Slater & Mehta (2018). * A study estimating the body mass of the fossil
procyonids Procyonidae is a New World family of the order Carnivora. It comprises the raccoons, ringtails, cacomistles, coatis, kinkajous, olingos, and olinguitos. Procyonids inhabit a wide range of environments and are generally omnivorous. Characte ...
'' Cyonasua'', '' Parahyaenodon'' and '' Tetraprothomo'' is published by Tarquini ''et al.'' (2018). * Fossils of members of the genera '' Nasua'' and '' Procyon'' are described from the Marplatan stage of the El Breal of Orocual locality ( Venezuela) by Ruiz-Ramoni, Rincón & Montellano-Ballesteros (2018), representing the oldest record of these procyonids in South America reported so far. * The first well-preserved skull of the fossil mustelid '' Leptarctus oregonensis'' is described from the Miocene Mascall Formation ( Oregon, United States) by Calede, Kehl & Davis (2018). * A study on joints morphology and mobility in the hind limb of the Miocene mustelid species '' Semantor macrurus'' is published by Lavrov, Tarasenko & Vlasenko (2018). * Description of new fossil material of '' Iberictis azanzae'' and ''I. buloti'' from the early Miocene of Spain, providing new information on the anatomy of ''Iberictis'', and a study on the phylogenetic relationships of this genus is published online by Valenciano ''et al.'' (2018). * Femur of a member of the genus ''Enhydra'' (a relative of the
sea otter The sea otter (''Enhydra lutris'') is a marine mammal native to the coasts of the northern and eastern North Pacific Ocean. Adult sea otters typically weigh between , making them the heaviest members of the weasel family, but among the small ...
) is described from the middle Pleistocene Merced Formation ( California, United States) by Boessenecker (2018), representing the oldest record of ''Enhydra'' in the Pacific with robust geochronologic age control reported so far. * New specimens of members of the genus ''
Enaliarctos ''Enaliarctos''From Greek , ''enalios'', of the sea; and , ''arktos'', bear, "referring to the arctoid, including ursid, Carnivora" (Mitchell & Tedford, 1973, p. 218). is an extinct genus of pinnipedimorph, and may represent the ancestor to all ...
'' are described from the Miocene Skooner Gulch Formation ( California, United States),
Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the ...
Yaquina Formation The Yaquina Formation is a geologic formation in Oregon. It preserves fossils dating back to the Paleogene period. Fossil content Mammals Carnivorans Cetaceans Desmostylians Fish Bony fish Sharks See also * List of fossiliferous strati ...
( Oregon, United States) and Miocene
Astoria Formation The Astoria Formation is a geologic formation in Oregon. It preserves fossils dating back to the Neogene period. See also *List of fossiliferous stratigraphic units in Oregon *Paleontology in Oregon The location of the state of Oregon Paleon ...
(Oregon, United States) by Poust & Boessenecker (2018), extending the geographic and temporal range of the genus. * A study on the morphology of the forelimbs of ''Enaliarctos mealsi'' and extant phocine earless seals, on the use of forelimbs to secure and tear prey by extant phocine seals, and on its implications for inferring the feeding behaviour of early pinnipeds, is published by Hocking ''et al.'' (2018). * Description of the anatomy of the first known mandible of the earless seal '' Devinophoca claytoni'' from the Miocene of Slovakia is published by Rahmat & Koretsky (2018). * A
humerus The humerus (; ) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a roun ...
of an earless seal belonging to the subfamily Monachinae is described from the Pliocene (most likely
Piacenzian The Piacenzian is in the international geologic time scale the upper stage (stratigraphy), stage or latest age (geology), age of the Pliocene. It spans the time between 3.6 ± 0.005 year#SI prefix multipliers, Ma and 2.588 ± 0.005 Ma (million yea ...
) Lillo Formation ( Belgium) by Dewaele, Lambert & Louwye (2018), representing the first known monachine specimen from the latest early to late Pliocene of the North Sea. * A fossil specimen assigned to the genus ''
Homiphoca ''Homiphoca'' is an extinct genus of earless seals from the Pliocene of South Africa. Taxonomy The type species of ''Homiphoca'', ''H. capensis'', was originally described as a species of the dubious delphinoid '' Prionodelphis'', ''P. capens ...
'' is described from the Pliocene of Spain by Rahmat ''et al.'' (2018), representing the first European record of this genus. * A study on the mandibular morphology of the
odobenid Odobenidae is a family of pinnipeds. The only living species is the walrus (''Odobenus rosmarus''). In the past, however, the group was much more diverse, and includes more than a dozen fossil genera. Taxonomy All genera, except ''Odobenus'', ...
''
Neotherium ''Neotherium mirum'' is an extinct species of basal walrus.Berta, Annalisa. 2002bPinniped Evolutionin ''Encyclopedia of Marine Mammals'', eds. Perrin, William F., Bernd Würsig Bernd Gerhard Würsig (born 9 November 1948 in Barsinghausen, Ge ...
mirum'', as well as on the affinities of mandibles from the Miocene Sharktooth Hill Bonebed in California representing other pinnipeds, is published by Velez-Juarbe (2018). * New specimen of '' Ontocetus emmonsi'' is described from the Austin Sand Pit (Ridgeville, South Carolina, United States) by Boessenecker, Boessenecker & Geisler (2018), representing the youngest record of ''O. emmonsi'' from the
Atlantic coastal plain The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth#Surface, Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Afr ...
reported so far. * Evidence of Pleistocene
hyena Hyenas, or hyaenas (from Ancient Greek , ), are feliform carnivoran mammals of the family Hyaenidae . With only four extant species (each in its own genus), it is the fifth-smallest family in the Carnivora and one of the smallest in the clas ...
s preying upon small rodents is reported from the Bois Roche cave site ( France) by Williams ''et al.'' (2018). * A study on the external brain morphology of a juvenile
cave hyena The cave hyena (''Crocuta crocuta spelaea''), also known as the Ice Age spotted hyena, was a paleosubspecies of spotted hyena which ranged from the Iberian Peninsula to eastern Siberia. It is one of the best known mammals of the Ice Age and is w ...
from the
Jasovská Cave Jasov Cave ( sk, Jasovská jaskyňa, and hu, Jászói barlang) is a speleothem limestone cave and archaeological site in the Slovak Karst in Slovakia. It is located near the village of Jasov, around from Košice city. History The cave was p ...
( Slovakia) is published by Petrovič ''et al.'' (2018). *
Cougar The cougar (''Puma concolor'') is a large Felidae, cat native to the Americas. Its Species distribution, range spans from the Canadian Yukon to the southern Andes in South America and is the most widespread of any large wild terrestrial mamm ...
skull is described from the Pleistocene (
Ensenadan The Ensenadan age is a period of geologic time (1.2–0.8 Ma) within the Early Pleistocene epoch of the Quaternary The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the ...
) of Argentina by Chimento & Dondas (2018), representing the first unequivocal record of the cougar prior to late Pleistocene times in South America. * A study on the shape and the dimensions of the bony
vestibular system The vestibular system, in vertebrates, is a sensory system that creates the sense of balance and spatial orientation for the purpose of coordinating movement with balance. Together with the cochlea, a part of the auditory system, it constitutes ...
in the inner ear of the cheetah, comparing it with the vestibular system in other extant felids and in the extinct giant cheetah (''Acinonyx pardinensis'') and '' Proailurus lemanensis'', and on the evolution of the vestibular system of the cheetah is published by Grohé, Lee & Flynn (2018). * Description of a partial skull of a large felid from the late
Villafranchian Villafranchian age ( ) is a period of geologic time (3.5–1.0 Ma) spanning the Late Pliocene and Early Pleistocene used more specifically with European Land Mammal Ages. Named by Italian geologist Lorenzo Pareto for a sequence of terrestrial s ...
site of Monte Argentario ( Italy), formerly assigned to the species '' Panthera gombaszoegensis'', is published by Cherin ''et al.'' (2018), who refer this specimen (and some other Italian materials previously referred to ''P. gombaszoegensis'') to the species ''Acinonyx pardinensis''. * Description of fossils of at least four adult cave lions ('' Panthera spelaea'') from Medvedia Cave in the Západné Tatra Mountains ( Slovakia) and a study on the range and social behavior of members of this taxon is published by Sabol, Gullár & Horvát (2018). * A study on bones belonging to at least 11 individuals of fossil lion from the Imanai Cave in the Southern Urals, representing one of the largest Eurasian burial sites of fossil lions, is published by Gimranov ''et al.'' (2018). * An exceptionally large skull of a
lion The lion (''Panthera leo'') is a large Felidae, cat of the genus ''Panthera'' native to Africa and India. It has a muscular, broad-chested body; short, rounded head; round ears; and a hairy tuft at the end of its tail. It is sexually dimorphi ...
, comparable to large specimens of the American lion in terms of skull length and substantially larger than known skulls of extant lions, is described from the Pleistocene of Kenya by Manthi ''et al.'' (2018). * A study on the
historical biogeography Phylogeography is the study of the historical processes that may be responsible for the past to present geographic distributions of genealogical lineages. This is accomplished by considering the geographic distribution of individuals in light of ge ...
of the
leopard The leopard (''Panthera pardus'') is one of the five extant species in the genus '' Panthera'', a member of the cat family, Felidae. It occurs in a wide range in sub-Saharan Africa, in some parts of Western and Central Asia, Southern Russia, a ...
(''Panthera pardus''), based on data from
mitogenome Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA ...
sequences from historical samples spanning the entire modern leopard distribution, as well as from Late Pleistocene remains from Caucasus and Central Europe, is published by Paijmans ''et al.'' (2018). * The northernmost fossil record of the
jaguar The jaguar (''Panthera onca'') is a large cat species and the only living member of the genus '' Panthera'' native to the Americas. With a body length of up to and a weight of up to , it is the largest cat species in the Americas and the th ...
from Argentina is reported from the late Pleistocene-early Holocene Río Bermejo Formation ( Formosa Province) by Rodriguez ''et al.'' (2018). * A study on the evolution of the morphological diversity of the mandibles of saber-toothed cats, as well as on the
speciation Speciation is the evolutionary process by which populations evolve to become distinct species. The biologist Orator F. Cook coined the term in 1906 for cladogenesis, the splitting of lineages, as opposed to anagenesis, phyletic evolution within ...
and extinction rates in the evolution of saber-toothed cats, is published by Piras ''et al.'' (2018). * A study on the evolution of upper canine length in the felid lineages leading to the fossil saber-toothed cats and extant
clouded leopard The clouded leopard (''Neofelis nebulosa''), also called the mainland clouded leopard, is a wild cat inhabiting dense forests from the foothills of the Himalayas through mainland Southeast Asia into South China. In the early 19th century, a cl ...
is published by Harano & Kutsukake (2018). * A canine of '' Megantereon whitei'' is reported from Trlica Cave in Montenegro by Vislobokova (2018), reflecting the first penetration of this African species into the Balkans. * An almost complete skull of '' Smilodon fatalis'' will be described from the Pleistocene Sopas Formation ( Uruguay) by Manzuetti ''et al.'' (2018), representing the first known record of the species from the eastern part of South America. * A study on the skull stiffness and flexibility in ''Smilodon fatalis'' and '' Homotherium serum'', and on their implications for inferring the killing behavior of these cats, is published by Figueirido ''et al.'' (2018).


Rodents

* A study on the late Miocene rodents of the Iberoccitanian Region ( Iberian Peninsula and southern France), aiming to identify the rodent metacommunities and to analyse their reactions to environmental changes, is published by Blanco ''et al.'' (2018). * A study on the ecology and dietary preferences of extinct endemic rodents from
Hispaniola Hispaniola (, also ; es, La Española; Latin and french: Hispaniola; ht, Ispayola; tnq, Ayiti or Quisqueya) is an island in the Caribbean that is part of the Greater Antilles. Hispaniola is the most populous island in the West Indies, and th ...
is published by Cooke & Crowley (2018). * A study on the morphology of tarsal bones of two species of the ctenodactyloid genus '' Tamquammys'' from the Eocene of
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
, aiming at the reconstruction of locomotor adaptations and lifestyle of ''Tamquammys'', is published by Fostowicz-Frelik, Li & Ni (2018). * New adult and juvenile specimens of the dinomyid rodent '' Isostylomys laurillardi'' are described from the Miocene
Camacho Formation Camacho is a surname of Spanish, Portuguese or French origin. Notable people with the surname include: * Camacho (wrestler), one of the stage names of Tevita Fifita (born 1983), Tongan-American professional wrestler * Alejandro Camacho (born 1954) ...
( Uruguay) by Rinderknecht, Bostelmann & Ubilla (2018). * A study on the anatomy and phylogenetic relationships of '' Tetrastylus walteri'', based on data from the holotype and new specimens, is published online by Kerber ''et al.'' (2018), who consider this taxon to be a valid species. * The first description of the postcranium of '' Cardiomys'', based on a well-preserved specimen from the late Miocene of Central Argentina, and a study on the paleobiology and systematics of this taxon is published by Candela, Muñoz & García-Esponda (2018). * A mandibular fragment of the euryzygomatomyine
echimyid Echimyidae is the family of neotropical spiny rats and their fossil relatives. This is the most species-rich family of Hystricognathi, hystricognath rodents. It is probably also the most ecologically diverse, with members ranging from fully ar ...
'' Dicolpomys fossor'' is described from the late Holocene Sambaquí de Puerto Landa site ( Entre Ríos Province, Argentina) by Verzi ''et al.'' (2018), representing the most recent record of an extinct South American caviomorph genus reported so far. * The first known fossil (an almost complete skull) of the San Felipe hutia (''Mesocapromys sanfelipensis'') is described from a cave room within Cueva del Indio ( Mayabeque Province, Cuba) by Viñola Lopez, Garrido & Bermúdez (2018), who interpret their finding as indicating that the modern population of this species is a marginal relic of its former distribution during the Quaternary. * A revision of the fossils of members of the genus ''
Phoberomys ''Phoberomys'' is an extinct genus of rodents. Fossil specimens from the Late Miocene period have been discovered in the Ituzaingó Formation of Argentina, the Solimões Formation of Brazil, the Urumaco Formation at Urumaco in Venezuela, and th ...
'' from the late Miocene of Entre Ríos Province ( Argentina) and a study on their systematics and phylogenetic relationships is published by Rasia & Candela (2018). * Fossil New World porcupine belonging or related to the species '' Coendou magnus'' is described from the Upper Pleistocene of the Santa Fe Province ( Argentina) by Vezzosi & Kerber (2018). * Revision of the problematic
Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
sciurid Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Sq ...
genus '' Sinotamias'' is published by Sinitsa (2018). * A sciurid rodent is reported from the Miocene Clarkia fossil beds ( Latah Formation, Idaho, United States) by Calede ''et al.'' (2018), representing the first tetrapod reported from this lagerstätte. * Fossils of ''
Miopetaurista ''Miopetaurista'' is an extinct genus of flying squirrel closely related to flying squirrels of today. Fossils of this species have been found from the Miocene of Europe (France, Germany) and Asia Asia (, ) is one of the world's most no ...
neogrivensis'' with an estimated age of 11.63 million years are described from the Abocador de Can Mata site ACM/C5-D1 ( Els Hostalets de Pierola, Catalonia, Spain) by Casanovas-Vilar ''et al.'' (2018), representing the oldest fossils of a flying squirrel that display the gliding-related diagnostic features shared by extant forms. * The first virtual endocasts of extant
mountain beaver The mountain beaver (''Aplodontia rufa'')Other names include mountain boomer, ground bear, giant mole, gehalis, lesser sasquatch, sewellel, suwellel, showhurll, showtl, and showte, as well as a number of Chinookan and other Native American terms ...
and three fossil members of the family
Aplodontiidae The family Aplodontiidae also known as Aplodontidae, Haplodontiidae or Haploodontini is traditionally classified as the sole extant family of the suborder Protrogomorpha. It may be the sister family of the Sciuridae. There are fossils from the ...
are described by Bertrand ''et al.'' (2018). * A study on the enamel
ultrastructure Ultrastructure (or ultra-structure) is the architecture of cells and biomaterials that is visible at higher magnifications than found on a standard optical light microscope. This traditionally meant the resolution and magnification range of a co ...
of molars of the anomalomyid species '' Anomalomys gaillardi'', as well as extant and fossil spalacids from Ukraine belonging to the genera '' Pliospalax'' and '' Spalax'', is published by Nowakowski ''et al.'' (2018). * Revision of putative fossils of members of the genus '' Nectomys'' from the Pleistocene of Argentina and
Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...
is published by Pardiñas & Barbière (2018). * A study on the demographic history of ''
Abrothrix ''Abrothrix'' is a genus of rodent in the tribe Abrotrichini of family Cricetidae. It contains the following living species:Teta et al., 2017 *''Abrothrix andina'' *''Abrothrix hershkovitzi'' *''Abrothrix hirta'' *''Abrothrix illutea'' *''Abrothri ...
manni'' during Pleistocene glaciations in southern Chile is published by Valdez & D'Elía (2018). * A study on the body mass and evolution of the Miocene rodent '' Mikrotia'' from Italy is published by Moncunill-Solé, Jordana & Köhler (2018). * A study on the phylogenetic relationships of murid rodents, implementing nine robust fossil constraints based on a thorough review of the fossil record, is published by Aghová ''et al.'' (2018).


Primates

* A study on the morphology of the nasolacrimal canal and duct in extant and
Paleogene The Paleogene ( ; British English, also spelled Palaeogene or Palæogene; informally Lower Tertiary or Early Tertiary) is a geologic period, geologic period and system that spans 43 million years from the end of the Cretaceous Period million yea ...
strepsirrhines and
haplorhines Haplorhini (), the haplorhines (Greek for "simple-nosed") or the "dry-nosed" primates, is a suborder of primates containing the tarsiers and the simians (Simiiformes or anthropoids), as sister of the Strepsirrhini ("moist-nosed"). The name is some ...
, and on its implications for inferring the phylogenetic relationships of Paleogene primates, is published by Rossie ''et al.'' (2018). * A study on the anatomy and phylogenetic relationships of ''
Propotto ''Propotto'' is an extinct, monotypic genus of early strepsirrhine primate from the early Miocene of Kenya. It contains one described species, ''Propotto leakeyi''. Although long considered a pteropodid fruit-eating bat after spending a brief soj ...
leakeyi'' is published by Gunnell ''et al.'' (2018), who support George Simpson's original interpretation of this species as a strepsirrhine primate, and consider both ''P. leakeyi'' and ''
Plesiopithecus ''Plesiopithecus '' is an extinct genus of early strepsirrhine primate from the late Eocene. Anatomy Originally described from the right mandible (lower jaw), its confusing anatomy resulted in it being classified as an ape—its name translate ...
teras'' to be relatives of the aye-aye. * A study on reconstructing the jaw muscles and bite force of subfossil lemurs from Madagascar, as well as on their implications for inferring the diet of these lemurs, is published by Perry (2018). * A study on the early evolution of North American adapids and omomyids, comparing reconstructed dietary niches of these primates and other animals from their guild to establish the nature of the competitive environment surrounding primate origins in North America, is published by Stroik & Schwartz (2018). * Description of isolated
phalanges The phalanges (singular: ''phalanx'' ) are digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones. ...
from four early Eocene localities in Wyoming ( United States), indicative of presence of
grooming claw A grooming claw (or toilet claw) is the specialized claw or nail on the foot of certain primates, used for personal grooming. All prosimians have a grooming claw, but the digit that is specialized in this manner varies. Tarsiers have a grooming ...
s in five genera of early
haplorhine Haplorhini (), the haplorhines (Greek for "simple-nosed") or the "dry-nosed" primates, is a suborder of primates containing the tarsiers and the simians (Simiiformes or anthropoids), as sister of the Strepsirrhini ("moist-nosed"). The name is some ...
primates (including ''
Teilhardina ''Teilhardina'' (, ) was an early marmoset-like primate that lived in Europe, North America and Asia during the Early Eocene epoch, about 56-47 million years ago. The paleontologist George Gaylord Simpson is credited with naming it after the Fre ...
''), is published by Boyer ''et al.'' (2018). * A study evaluating whether the locomotor behaviour of extant New World monkeys can be inferred from their talus morphology, and applying machine learning algorithms trained using both the biomechanical and morphometric data from the extant taxa to infer the possible locomotor behaviour of Miocene New World monkeys from Argentina, Chile, Peru,
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
and Cuba, is published by Püschel ''et al.'' (2018). * Partial mandible of '' Homunculus patagonicus'' from the early Miocene sediments in the Coyle river area ( Santa Cruz Province, Argentina), providing new information on the morphology of the mandible and teeth of ''Homunculus'', and two teeth of '' Mazzonicebus almendrae'' from Colhue-Huapi ( Chubut Province, Argentina), providing the first evidence of the deciduous dentition of ''Mazzonicebus'', are described by Novo, Tejedor & González Ruiz (2018). * A study on the phylogenetic relationship of the
Jamaican monkey The Jamaican monkey (''Xenothrix mcgregori'') is an extinct species of New World monkey that was endemic to Jamaica. It was first uncovered at Long Mile Cave by Harold Anthony in 1920. Discovery Harold Anthony is responsible for many species ...
(''Xenothrix mcgregori''), as indicated by ancient DNA data, is published by Woods ''et al.'' (2018). * A tibia of a large-bodied arboreally adapted Old World monkey (a member or a relative of the genus ''
Rhinocolobus ''Rhinocolobus'' is an extinct genus of monkey closely related to modern colobus monkeys. It lived in eastern Africa during the Plio-Pleistocene, existing as recently as 1.5 million years ago. Taxonomy Fossils of ''Rhinocolobus'' were found in S ...
'') is described from the '' Australopithecus afarensis''-bearing Upper Laetolil Beds (~3.7 Ma) of Laetoli ( Tanzania) by Laird ''et al.'' (2018), who also study the implications of the specimen for inferring the
paleoenvironment Paleoecology (also spelled palaeoecology) is the study of interactions between organisms and/or interactions between organisms and their environments across geologic timescales. As a discipline, paleoecology interacts with, depends on and informs ...
of the Upper Laetolil Beds. * A skull of a large papionin monkey is described from the Lower Pleistocene site of Dafnero-3 ( Greece) by Kostopoulos ''et al.'' (2018), who interpret the anatomy of this skull as indicating that the specimen could equally be ascribed to either the Eurasian genus '' Paradolichopithecus'' or to the East Asian '' Procynocephalus'', and argue in favor of the synonymy of these genera. * A study on the phylogenetic relationships of living and fossil African papionins is published by Pugh & Gilbert (2018). * A study on the fossil members of the genus ''
Papio Baboons are primates comprising the genus ''Papio'', one of the 23 genera of Old World monkeys. There are six species of baboon: the hamadryas baboon, the Guinea baboon, the olive baboon, the yellow baboon, the Kinda baboon and the chacma ba ...
'' from across Africa, focusing on their distinguishing features and distribution, is published by Gilbert ''et al.'' (2018). * A study on the feeding ecology of Plio-Pleistocene members of the genera ''Papio'' and ''
Theropithecus ''Theropithecus'' is a genus of primates in the family Cercopithecidae. It contains a single living species, the gelada (''Theropithecus gelada''), native to the Ethiopian Highlands The Ethiopian Highlands is a rugged mass of mountains in Et ...
'' from the Shungura Formation ( Ethiopia) is published by Martin ''et al.'' (2018). * Three specimens of the
Barbary macaque The Barbary macaque (''Macaca sylvanus''), also known as Barbary ape, is a macaque species native to the Atlas Mountains of Algeria, Libya, Tunisia and Morocco, along with a small introduced population in Gibraltar. It is the type species of the ...
are described from the Pleistocene of the Netherlands by Reumer, Mol & Kahlke (2018). * A study evaluating whether climatic and environmental changes were the main cause of extinction of '' Oreopithecus bambolii'' is published by DeMiguel & Rook (2018). * A study on the body mass sexual dimorphism in ''
Nacholapithecus ''Nacholapithecus kerioi'' was an ape that lived 14-15 million years ago during the Middle Miocene. Fossils have been found in the Nachola formation in northern Kenya. The only member of the genus ''Nacholapithecus'', it is thought to be a key g ...
kerioi'' is published by Kikuchi ''et al.'' (2018). * Description of the anatomy of the forelimb
long bone The long bones are those that are longer than they are wide. They are one of five types of bones: long, Short bone, short, Flat bone, flat, Irregular bone, irregular and Sesamoid bone, sesamoid. Long bones, especially the femur and tibia, are subj ...
s of the holotype specimen of ''Nacholapithecus kerioi'' is published by Takano ''et al.'' (2018). * Fragment of the maxilla of a member of the genus '' Sivapithecus'' is described from the Miocene of the Tapar locality ( Gujarat, India) by Bhandari ''et al.'' (2018), representing the first record of a hominoid from the
Neogene The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. ...
of the Kutch Basin. * A review of the paleontological, archeological, genetic and behavioral evidence of the impact of at least 70,000 years of human influence on orangutan distribution, abundance and ecology is published by Spehar ''et al.'' (2018). * Description of tooth decay affecting the type specimen of ''
Dryopithecus ''Dryopithecus'' is a genus of extinct great apes from the middle–late Miocene boundary of Europe 12.5 to 11.1 million years ago (mya). Since its discovery in 1856, the genus has been subject to taxonomic turmoil, with numerous new species b ...
carinthiacus'', and a study on its implications for inferring the diet of this specimen, is published by Fuss, Uhlig & Böhme (2018). * A study on the phylogenetic relationships of '' Graecopithecus'' published by Benoit & Thackeray (2017), aiming to refute the hypothesis that ''Graecopithecus'' is a member of the hominin clade, is criticized by Fuss ''et al.'' (2018). * A study evaluating whether machine learning methods can accurately classify extant apes based on dental data, and using this classification method to explore the affinities between dentitions of Miocene hominoid fossils and living apes, is published by Monson, Armitage & Hlusko (2018). * A study on the utility of enamel thickness, enamel-
dentin Dentin () (American English) or dentine ( or ) (British English) ( la, substantia eburnea) is a calcified tissue of the body and, along with enamel, cementum, and pulp, is one of the four major components of teeth. It is usually covered by ena ...
e junction shape and crown development for determining the taxonomic affiliation of isolated teeth of hominins and pongines from the Asian Pleistocene is published by Smith ''et al.'' (2018).


General paleoanthropology

* Estimations of body mass in Pliocene and Pleistocene hominins based on lower limb bones dimensions are presented by Ruff ''et al.'' (2018). * A study on the evolution of the brain size in hominins is published by Du ''et al.'' (2018). * A study on the evolution of the mandible shape in hominins, based on an analysis of the mandibular shape variation in a large sample of plesiadapiforms and primates, is published by Raia ''et al.'' (2018). * A study on the
cervical In anatomy, cervical is an adjective that has two meanings: # of or pertaining to any neck. # of or pertaining to the female cervix: i.e., the ''neck'' of the uterus. *Commonly used medical phrases involving the neck are **cervical collar **cervic ...
kinematics in early fossil hominins, based on an analysis of uncinate processes in the vertebrae of fossil hominins, ''Homo sapiens'' and extant nonhuman primates, is published by Meyer ''et al.'' (2018). * A study on the intra-specific variation of patterns of metatarsal robusticity (a measure reflecting habitual stresses in
long bone The long bones are those that are longer than they are wide. They are one of five types of bones: long, Short bone, short, Flat bone, flat, Irregular bone, irregular and Sesamoid bone, sesamoid. Long bones, especially the femur and tibia, are subj ...
s, and in particular, loads experienced over an animal's lifetime) in modern humans and extant African apes, and its implications for inferring whether the
Olduvai Hominid 8 Olduvai Hominid number 8 (OH 8) is a fossilized foot of an early hominin found in Olduvai Gorge by Louis Leakey in the early 1960s. Kidd et al. (1996) argued that the fossil assemblage exhibits both ape and human characteristics. The lateral si ...
foot was biomechanically similar to the feet of modern humans, is published by Patel ''et al.'' (2018). * A study on the bony shape variables in the metatarsals of extant
anthropoid Anthropoid means 'ape/human feature' and may refer to: * Simian, monkeys and apes (anthropoids, or suborder Anthropoidea, in earlier classifications) *Anthropoid apes - apes that are closely related to humans (e.g., former family Pongidae and some ...
primates and fossil hominins, and on their importance to the evolution of terrestrial bipedalism in hominins, is published by Fernández ''et al.'' (2018). * Domínguez-Rodrigo & Baquedano (2018) evaluate the ability of successful machine learning methods to compare and distinguish various types of bone surface modifications (trampling marks, crocodile bite marks and cut marks made with stone tools) in archaeofaunal assemblages. *
Taphonomic Taphonomy is the study of how organisms decay and become fossilized or preserved in the paleontological record. The term ''taphonomy'' (from Greek , 'burial' and , 'law') was introduced to paleontology in 1940 by Soviet scientist Ivan Efremov t ...
study on the ca. 1.84 million year old bovid fossils (preserving evidence of meat eating by early hominins) from
Olduvai Gorge The Olduvai Gorge or Oldupai Gorge in Tanzania is one of the most important paleoanthropology, paleoanthropological localities in the world; the many sites exposed by the gorge have proven invaluable in furthering understanding of early human ev ...
( Tanzania), evaluating whether hominins had early access to fleshed carcasses through hunting or active scavenging, or late access to largely defleshed carcasses through passive scavenging, is published by Parkinson (2018). * The study published by Gierliński ''et al.'' (2017), reporting putative tetrapod footprints with hominin-like characteristics from the late Miocene of Crete ( Greece), is criticized by Meldrum &
Sarmiento Sarmiento may refer to: Places Argentina *Sarmiento Department, San Juan, a subdivision of the San Juan Province *Sarmiento Department, Santiago del Estero, a subdivision of the Santiago del Estero Province *Sarmiento Department, Chubut, a subdivi ...
(2018). * A study aiming to estimate body mass of '' Orrorin tugenensis'' and '' Ardipithecus ramidus'' is published by Grabowski, Hatala & Jungers (2018). * A study comparing the calcar femorale of ''Orrorin tugenensis'' and other hominoids is published by Kuperavage ''et al.'' (2018), who interpret their findings as indicating that ''O. tugenensis'' was an early bipedal hominin. * A study on the hydrological changes in the Limpopo River catchment and in sea surface temperature in the southwestern Indian Ocean for the past 2.14 million years, and on their implications for inferring the palaeoclimatic changes in southeastern Africa in this time period and their possible impact on the evolution of early hominins, is published by Caley ''et al.'' (2018). * A study on the behavioral features which might have contributed to the demographic success of early hominids such as '' Australopithecus'', based on comparison with macaques, is published by Meindl, Chaney & Lovejoy (2018). * A study on the diversity dynamics of early hominins, evaluating whether the observed patterns of early hominin diversity can be better explained by sampling biases or genuine evolutionary processes, is published by Maxwell ''et al.'' (2018). * A study on the
pelvic The pelvis (plural pelves or pelvises) is the lower part of the trunk, between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton (sometimes also called bony pelvis, or pelvic skeleton). The ...
morphology in '' Ardipithecus'' and ''Australopithecus'', evaluating the hypothesis that early hominins retained ischial proportions and orientation that favored greater force production during climbing but limited their ability to hyperextend the hip and walk as economically as modern humans, is published by Kozma ''et al.'' (2018). *
Endocrania The endocranium in comparative anatomy is a part of the skull base in vertebrates and it represents the basal, inner part of the cranium. The term is also applied to the outer layer of the dura mater in human anatomy. Structure Structurally, t ...
of two specimens of ''
Australopithecus africanus ''Australopithecus africanus'' is an extinct species of australopithecine which lived between about 3.3 and 2.1 million years ago in the Late Pliocene to Early Pleistocene of South Africa. The species has been recovered from Taung, Sterkfonte ...
'' from
Sterkfontein Sterkfontein (Afrikaans for ''Strong Spring'') is a set of limestone caves of special interest to paleo-anthropologists located in Gauteng province, about northwest of Johannesburg, South Africa in the Muldersdrift area close to the town of K ...
Member 4 ( South Africa) are virtually reconstructed by Beaudet ''et al.'' (2018). * A study on the paleoenvironment and diet of ''Australopithecus africanus'' and ''
Paranthropus robustus ''Paranthropus robustus'' is a species of robustness (morphology), robust australopithecine from the Early Pleistocene, Early and possibly Middle Pleistocene, Middle Pleistocene of the Cradle of Humankind, South Africa, about 2.27 to 0.87 (or, mo ...
'' as indicated by tooth microwear is published by Peterson ''et al.'' (2018). * A study on the relationship between root splay and overall morphology of first maxillary molars and jaw kinematics in South African ''Australopithecus africanus'' and ''Paranthropus robustus'', and on its implications for inferring the dietary niches of these species, is published by Kupczik, Toro-Ibacache & Macho (2018). * A study on the variation in trabecular bone structure of the femoral head in fossil hominins attributed to the species ''Australopithecus africanus'', ''Paranthropus robustus'' and to the genus '' Homo'', attempting to reconstruct hip joint loading conditions in these fossil hominins, is published by Ryan ''et al.'' (2018). * A study on the habitats and diets of ''
Paranthropus boisei ''Paranthropus boisei'' is a species of australopithecine from the Early Pleistocene of East Africa about 2.5 to 1.15 million years ago. The holotype specimen, OH 5, was discovered by palaeoanthropologist Mary Leakey in 1959, and described by h ...
'' and '' Homo rudolfensis'' from the Early Pleistocene of the Malawi Rift is published by Lüdecke ''et al.'' (2018). * A study on the
strontium isotope The alkaline earth metal strontium (38Sr) has four stable, naturally occurring isotopes: 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%). Its standard atomic weight is 87.62(1). Only 87Sr is radiogenic; it is produced by decay from t ...
data derived from three studies of teeth of ''Paranthropus robustus'', and on its implications for inferring habitat, mobility and growth of this species, is published by Sillen & Balter (2018). * The skull of ' Mrs. Ples' (Sts 5 specimen of ''Australopithecus africanus'') is interpreted as a skull of a small male rather than a large female individual by Tawane & Thackeray (2018). * A study on the variation in the structure of trabecular bone and joint loading in the
humeral head The humerus (; ) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a round ...
of extant hominoids, spider monkeys and ''Australopithecus africanus'' is published by Kivell ''et al.'' (2018), who interpret their findings as indicating that ''A. africanus'' may have still used its forelimbs for arboreal locomotion. * Description of a nearly complete, 3.32-million-year-old foot of a juvenile '' Australopithecus afarensis'' from Dikika ( Ethiopia) is published by DeSilva ''et al.'' (2018). * A study on the possible date of the first appearance of ''
Australopithecus sediba ''Australopithecus sediba'' is an extinct species of australopithecine recovered from Malapa Cave, Cradle of Humankind, South Africa. It is known from a partial juvenile skeleton, the holotype MH1, and a partial adult female skeleton, the para ...
'' as indicated by the average hominin species' temporal range is published by Robinson ''et al.'' (2018). * Studies on the anatomy of the skeleton of ''Australopithecus sediba'' are published by De Ruiter ''et al.'' (2018), Williams ''et al.'' (2018), Churchill ''et al.'' (2018), Kivell ''et al.'' (2018), Churchill ''et al.'' (2018), DeSilva ''et al.'' (2018) and Holliday ''et al.'' (2018). * A digital animation of the proposed walking mechanics of ''Australopithecus sediba'' is presented by Zhang & DeSilva (2018). * A study on the linear marks observed on the hominin fossil Stw53 from the
Sterkfontein Sterkfontein (Afrikaans for ''Strong Spring'') is a set of limestone caves of special interest to paleo-anthropologists located in Gauteng province, about northwest of Johannesburg, South Africa in the Muldersdrift area close to the town of K ...
cave site ( South Africa), evaluating whether these marks were cutmarks inflicted by stone tools or non-anthropic modifications, is published by Hanon, Péan & Prat (2018). * New artifacts are described from the Swartkrans cave (South Africa) by Kuman ''et al.'' (2018), who confirm the affinity of the Swartkrans artifacts with the Oldowan industrial complex. * Oldowan stone tools and associated hominin-modified fossil bones are reported from strata estimated to ≈2.4 and ≈1.9 Ma from two deposits at Ain Boucherit ( Algeria) by Sahnouni ''et al.'' (2018). *
Pelvic The pelvis (plural pelves or pelvises) is the lower part of the trunk, between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton (sometimes also called bony pelvis, or pelvic skeleton). The ...
remains of '' Homo naledi'' from the Dinaledi Chamber in the Rising Star Cave system (
Cradle of Humankind The Cradle of Humankind is a paleoanthropological site and is located about northwest of Johannesburg, South Africa, in the Gauteng province. Declared a World Heritage Site by UNESCO in 1999, the site is home to the largest concentration of ...
, South Africa) are described by VanSickle ''et al.'' (2018). * A study on the minimum number of individuals and on a demographic profile of the assemblage of ''Homo naledi'' individuals in the Dinaledi Chamber ( Rising Star Cave system, South Africa) is published by Bolter ''et al.'' (2018). * A study on the diet of ''Homo naledi'' as indicated by teeth wear textures is published by Ungar & Berger (2018). * A study comparing tooth shape and size in ''Homo naledi'' and other South African Plio-Pleistocene hominins, as well as a study on the possible diet of ''Homo naledi'', is published by Berthaume, Delezene & Kupczik (2018). * A study on the endocast morphology of ''Homo naledi'', comparing it with other hominoids and fossil hominins, is published by Holloway ''et al.'' (2018). * A study on the phenetic affinities and taxonomic validity of ''Homo naledi'' as indicated by teeth morphology will be published by Irish ''et al.'' (2018). * Three of ''Homo naledi'' recovered from the Dinaledi Chamber in the Rising Star cave system are described by Elliott ''et al.'' (2018). * Partial mandible of ''Homo naledi'' which was most likely affected by peripheral osteoma is reported by Odes ''et al.'' (2018). * A study on evaluating whether deliberate disposal of corpses is the only likely explanation for large assemblages of fossil human bones from the Middle Pleistocene sites of Sima de los Huesos ( Spain) and the Dinaledi Chamber ( South Africa) is published by Egeland ''et al.'' (2018). * A study on the phylogenetic relationships of the Pleistocene hominin specimen (a fragmented skullcap) from Kocabaş (Denizli Basin, Turkey) is published by Vialet ''et al.'' (2018). * A study on the morphology and affinities of the hominin calvaria KNM-ER 42700 from
Ileret Ileret (also spelled Illeret) is a village in Marsabit County, Kenya. It is located in Northern Kenya, on the eastern shore of Lake Turkana, north of Sibiloi National Park and near the Ethiopian border. Numerous hominin fossils have been foun ...
, Kenya is published by Neubauer ''et al.'' (2018). * A study on the frequency and location of hominin (likely ''
Homo habilis ''Homo habilis'' ("handy man") is an extinct species of archaic human from the Early Pleistocene of East and South Africa about 2.31 million years ago to 1.65 million years ago (mya). Upon species description in 1964, ''H. habilis'' was highly ...
'') butchery marks and carnivore tooth marks on mammal bones from the HWK EE site (
Olduvai Gorge The Olduvai Gorge or Oldupai Gorge in Tanzania is one of the most important paleoanthropology, paleoanthropological localities in the world; the many sites exposed by the gorge have proven invaluable in furthering understanding of early human ev ...
, Tanzania), and on their implications for inferring carnivorous feeding behavior of the HWK EE hominins and the ecological interactions they had with carnivores, is published by Pante ''et al.'' (2018). * A study estimating possible adult stature and body mass of the ''
Homo erectus ''Homo erectus'' (; meaning "upright man") is an extinct species of archaic human from the Pleistocene, with its earliest occurrence about 2 million years ago. Several human species, such as '' H. heidelbergensis'' and '' H. antecessor' ...
'' specimen KNM-WT 15000 (" Turkana Boy") is published by Cunningham ''et al.'' (2018). * A study on the structure of the animal community known from the Okote Member of the Koobi Fora Formation at East Turkana ( Kenya) as indicated by tracks and skeletal assemblages, and on the interactions of ''Homo erectus'' with environment and associated faunas from this site, is published by Roach ''et al.'' (2018). * A study on the large cutting tools from four Acheulean sites at Koobi Fora dated to ~1.4 million years ago, investigating the behavioural patterns underpinning recorded artefact variability, is published by Presnyakova ''et al.'' (2018). * A study on 1.07–0.99 million-year-old
pelvic The pelvis (plural pelves or pelvises) is the lower part of the trunk, between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton (sometimes also called bony pelvis, or pelvic skeleton). The ...
remains from Buia (
Eritrea Eritrea ( ; ti, ኤርትራ, Ertra, ; ar, إرتريا, ʾIritriyā), officially the State of Eritrea, is a country in the Horn of Africa region of Eastern Africa, with its capital and largest city at Asmara. It is bordered by Ethiopia ...
) is published by Hammond ''et al.'' (2018), who interpret their findings as indicating that the postcranial morphology of ''Homo erectus'' ''sensu lato'' was variable and, in some cases, nearly indistinguishable from modern human morphology, and that the shared last common ancestor of Late Pleistocene ''Homo'' species was unlikely to have an australopith-like pelvis. * A study on the humeral rigidity and strength in members of the species ''Homo erectus'' known from Zhoukoudian (
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
), comparing it with the humeral rigidity and strength in the African members of the species, is published by Xing ''et al.'' (2018). * A study on the morphology of teeth of ''Homo erectus'' from Zhoukoudian is published by Xing, Martinón-Torres & Bermúdez de Castro (2018). * A study on the age of the archaeological layers from the Zhoukoudian Upper Cave, and on its implications for understanding Late Quaternary human evolution in eastern Asia, is published by Li ''et al.'' (2018). * New magnetostratigraphic dating results for the Bailong Cave (China) sedimentary sequence containing hominin teeth assigned to the species ''Homo erectus'' are presented by Kong ''et al.'' (2018). * An Early Pleistocene artefact sequence, containing 17 artefact layers that extend from approximately 1.26 million years ago to about 2.12 million years ago, is described from the Shangchen locality ( Loess Plateau,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) by Zhu ''et al.'' (2018), indicating that hominins left Africa earlier than indicated by the evidence from Dmanisi. * A study investigating how the hominin groups living in the Qinling Mountains range (
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
) responded to glacial–interglacial shifts from ~1.20 million years ago to ~0.05 million years ago is published by Sun ''et al.'' (2018). * A study on the morphology and affinities of the Middle Pleistocene hominin mandible recovered from La Niche cave site of the Montmaurin karst system ( France) is published by Vialet ''et al.'' (2018). *
Taphonomic Taphonomy is the study of how organisms decay and become fossilized or preserved in the paleontological record. The term ''taphonomy'' (from Greek , 'burial' and , 'law') was introduced to paleontology in 1940 by Soviet scientist Ivan Efremov t ...
signatures of the
Aroeira 3 Aroeira 3 is a 400,000 year old ''Homo heidelbergensis'' hominid skull which was discovered in the Aroeira cave, Portugal. It is the earliest human trace in Portugal. ''H. heidelbergensis'' existed at the transition between ''Homo erectus'' and e ...
cranium, with a specific focus on cranial breakage, are described by Sanz ''et al.'' (2018), who attempt to approximate the cause of death of this individual. * A study on strategies for thermoregulation in the absence of fire in conditions experienced by hominins in north-west Europe before 400,000 years ago is published by MacDonald (2018). * Evidence for progressive aridification in East Africa since about 575,000 years before present, based on data from sediments from Lake Magadi ( Kenya), is presented by Owen ''et al.'' (2018), who also evaluate the influence of the increasing Middle- to Late-Pleistocene aridification and environmental variability on the physical and cultural evolution of ''Homo sapiens'' in East Africa. * A series of excavated
Middle Stone Age The Middle Stone Age (or MSA) was a period of African prehistory between the Early Stone Age and the Late Stone Age. It is generally considered to have begun around 280,000 years ago and ended around 50–25,000 years ago. The beginnings of pa ...
sites from the
Olorgesailie Olorgesailie is a geological formation in East Africa, on the floor of the Eastern Rift Valley in southern Kenya, southwest of Nairobi along the road to Lake Magadi. It contains a group of Lower Paleolithic archaeological sites. Olorgesaili ...
Basin (Kenya), dated as ≈320,000 years old, is presented by Brooks ''et al.'' (2018), who report evidence of hominins preparing cores and points, exploiting iron-rich rocks to obtain red pigment, and procuring stone tool materials from ≥25–50 km distance. * A study on the environmental dynamics before and after the onset of the early Middle Stone Age in the Olorgesailie Basin (Kenya) is published by Potts ''et al.'' (2018). * A study on the chronology of the Acheulean and early Middle Stone Age sedimentary deposits in the Olorgesailie Basin (Kenya) is published by Deino ''et al.'' (2018). * A study on bone artefacts from Middle Stone Age layers at Sibudu Cave ( South Africa), evaluating what kinds of animals were used to make bone tools, is published by Bradfield (2018). * A study on the stone tools from the Acheulean site of Saffaqah near Dawadmi (Saudi Arabia), and their implications for inferring how hominins adapted to this region, is published by Shipton ''et al.'' (2018). * A study on the stratigraphy, archaeology and chronology of the Saffaqah site, providing the first secure dates for this site, is published by Scerri ''et al.'' (2018). * A study on the age of stone tools from the
Attirampakkam Attirampakkam or Athirampakkam () is a village located 60 kilometers away from Chennai, Tamil Nadu, India. The oldest known stone tools in India were discovered near the village, which became the type site for the Madrasian culture. Discove ...
site in India is published by Akhilesh ''et al.'' (2018), indicating the emergence of a
Middle Paleolithic The Middle Paleolithic (or Middle Palaeolithic) is the second subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. The term Middle Stone Age is used as an equivalent or a synonym for the Middle Paleoli ...
culture in India at 385 ± 64 thousand years ago. * Stone tools associated with a skeleton of '' Rhinoceros philippinensis'' showing clear signs of butchery are described from a bone bed at Kalinga in the Cagayan Valley of northern Luzon (the Philippines), dated to between 777 and 631 thousand years ago, by Ingicco ''et al.'' (2018). * The study on the Cerutti Mastodon site published by Holen ''et al.'' (2017), reporting possible evidence of an unidentified species of the genus '' Homo'' living in California 130,000 years ago, is criticized by Ferraro ''et al.'' (2018). * Bone retouchers dated as approximately 125–105,000 years old are described from the Lingjing site in Henan,
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
by Doyon ''et al.'' (2018), representing the first evidence from Eastern Asia for the use of bone as raw material to modify stone tools. * A 90,000-years-old specialized bone tool discovered in association with the Aterian techno-complex is described from the cave site of Dar es-Soltan 1 ( Morocco) by Bouzouggar ''et al.'' (2018). * A study on the antiquity of the remains of '' Homo antecessor'', based on the first direct Electron Spin Resonance dating of a tooth from the TD6 unit of Atapuerca Gran Dolina site ( Spain), is published by Duval ''et al.'' (2018). * A study aiming to test the hypothesis if ''Homo antecessor'' molars approximated the Neanderthal rather than the ''Homo sapiens'' condition for tissue proportions and enamel thickness is published by Martín-Francés ''et al.'' (2018). * An assemblage of hominin tracks produced by adults and children potentially as young as 12 months, probably members of the species '' Homo heidelbergensis'' living 700,000 years ago, is described from the Upper Awash Valley ( Ethiopia) by Altamura ''et al.'' (2018). * A study on the morphology and function of the browridge of the Kabwe 1 archaic hominin specimen is published by Godinho, Spikins & O'Higgins (2018). * A study intending to detect
introgressed Introgression, also known as introgressive hybridization, in genetics is the transfer of genetic material from one species into the gene pool of another by the repeated backcrossing of an interspecific hybrid with one of its parent species. Intr ...
Denisovan genetic material in present-day human genomes is published by Browning ''et al.'' (2018), who report evidence of Denisovan ancestry in populations from East and South Asia and Papuans, and interpret their findings as indicating that at least two distinct instances of Denisovan admixture into modern humans occurred. * Genome recovered from a bone fragment from the Denisova Cave ( Russia) is presented by Slon ''et al.'' (2018), who interpret the studied individual as the offspring of a Neanderthal mother and a Denisovan father. * A study on the absolute bone volume in five human
long bone The long bones are those that are longer than they are wide. They are one of five types of bones: long, Short bone, short, Flat bone, flat, Irregular bone, irregular and Sesamoid bone, sesamoid. Long bones, especially the femur and tibia, are subj ...
s from the Sima de los Huesos site is published by Carretero ''et al.'' (2018), who interpret their findings as indicating that Sima de los Huesos hominins had on average heavier long bones than extant humans of the same size. * A study on the stone tools from the site of la Noira ( France) and their implications for reconstructing early Acheulean hominin behavior is published by Hardy ''et al.'' (2018), who argue that the hominins from this site used a broad range of resources including wood, plants, mammals, and possibly birds and fish, and that Middle Pleistocene hominins had detailed local environmental knowledge and were able to adapt to a wide range of environments. * A study aiming to estimate total lung capacity of Neanderthals, as well as Early Pleistocene hominins from the Gran Dolina site ATD6 ( Spain), is published by García-Martínez ''et al.'' (2018). * A series of partially charred wooden tools is described from the late Middle Pleistocene site of Poggetti Vecchi (central Italy) by Aranguren ''et al.'' (2018), who interpret their findings as indicating that Neanderthals were able to choose the appropriate timber and to process it with fire to produce tools. * A wooden tool (possibly a digging stick), likely produced by Neanderthals, is described from the early Late Pleistocene Aranbaltza III site (
Basque Country Basque Country may refer to: * Basque Country (autonomous community), as used in Spain ( es, País Vasco, link=no), also called , an Autonomous communities of Spain, autonomous community of Spain (shown in pink on the map) * French Basque Country o ...
, Spain) by Rios-Garaizar ''et al.'' (2018), representing the oldest wooden tool from southern Europe reported so far. * Cave art in Cave of La Pasiega, Maltravieso cave and Ardales cave ( Spain) is dated as older than 64,000 years (thus predating the arrival of modern humans in Europe) by Hoffmann ''et al.'' (2018), who interpret their findings as indicative of Neandertal authorship of the art; the study is subsequently criticized by Pearce & Bonneau (2018), Aubert, Brumm & Huntley (2018), Slimak ''et al.'' (2018) and White ''et al.'' (2020). * A study on the age of the flowstone capping the Cueva de los Aviones deposit in southeast Spain is published by Hoffmann ''et al.'' (2018), who report that Neanderthal-associated evidence of symbolic behavior found at the site is 115,000 to 120,000 years old and predates the earliest known comparable evidence associated with modern humans by 20,000 to 40,000 years. * Genomes of five Neanderthals from Belgium ( Spy Cave and
Goyet Caves The Goyet Caves (french: Grottes de Goyet) are a series of connected caves located in Wallonia in a limestone cliff about 15 m (50 ft) above the river Samson near the village of Mozet in the Gesves municipality of the Namur province, Belgium. The ...
), France (Les Cottés cave), Croatia ( Vindija Cave) and Russia (
Mezmaiskaya cave Mezmaiskaya Cave (russian: Мезмайская пещера) is a prehistoric cave site overlooking the right bank of the Sukhoi Kurdzhips (a tributary of the Kurdzhips River) in the southern Russian Republic of Adygea, located in the northwest ...
), who lived around 39,000 to 47,000 years ago, are sequenced by Hajdinjak ''et al.'' (2018). * A study on Neanderthal skeletal remains and animal fossils from the Vindija Cave, and on their implications for inferring Neanderthal behaviour, is published by Patou-Mathis, Karavanić & Smith (2018). * A study evaluating three hypotheses forwarded to explain the distinctive Neanderthal face is published by Wroe ''et al.'' (2018). * A study evaluating ecological niche similarity between the datasets of morphologically diagnostic Neanderthal remains and of archaeological sites with
Middle Paleolithic The Middle Paleolithic (or Middle Palaeolithic) is the second subdivision of the Paleolithic or Old Stone Age as it is understood in Europe, Africa and Asia. The term Middle Stone Age is used as an equivalent or a synonym for the Middle Paleoli ...
artifacts (but no diagnostic hominin remains), as well as assessing its implications for inferring whether those archaeological sites represent Neanderthal occurrences, is published by Bible & Peterson (2018). * Gaudzinski-Windheuser ''et al.'' (2018) report perforations observed on two fallow deer skeletons from the 120,000-year-old lake shore deposits from Neumark-Nord ( Germany), interpreted as evidence of close-range use of thrusting spears by Neanderthals. * A study on the timing and duration of periods of climate deterioration in the interior of the Iberian Peninsula in the late Pleistocene, evaluating the impact of climate on the abandonment of inner Iberian territories by Neanderthals 42,000 years ago, is published by Wolf ''et al.'' (2018). * A study on pollen recovered from hyaena coprolites from
Vanguard Cave Vanguard Cave is a natural sea cave in the British Overseas Territory of Gibraltar which is part of the Gorham's Cave complex. This complex of four caves has been nominated as a UNESCO World Heritage Site status in 2016. The cave complex is one ...
(
Gibraltar ) , anthem = " God Save the King" , song = " Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gib ...
), and on its implications for reconstructing the vegetation landscapes in the environment inhabited by southern Iberian Neanderthals during the
MIS 3 Marine isotope stages (MIS), marine oxygen-isotope stages, or oxygen isotope stages (OIS), are alternating warm and cool periods in the Earth's paleoclimate, deduced from oxygen isotope data reflecting changes in temperature derived from data ...
, is published by Carrión ''et al.'' (2018). * Evidence of bird and carnivore exploitation by Neanderthals (cut-marks in golden eagle, raven, wolf and
lynx A lynx is a type of wild cat. Lynx may also refer to: Astronomy * Lynx (constellation) * Lynx (Chinese astronomy) * Lynx X-ray Observatory, a NASA-funded mission concept for a next-generation X-ray space observatory Places Canada * Lynx, Ontar ...
remains) is reported from the
Axlor Axlor is a prehistoric archeological site in the village of Dima in Biscay in the Autonomous Basque Community of Spain, dating from the Middle Paleolithic or Mousterian period. Excavation The shelter is the mouth of an old cave that has been ...
site ( Spain) by Gómez-Olivencia ''et al.'' (2018). * The first direct artefactual evidence for regular, systematic fire production by Neanderthals is reported from archaeological layers attributed to late Mousterian industries at multiple sites throughout France by Sorensen, Claud & Soressi (2018). * A study on Neanderthal manual activities is published by Karakostis ''et al.'' (2018), who report evidence of habitual performance of precision grasping by Neanderthals. * 3D virtual reconstruction of the thorax of the
Kebara 2 Kebara 2 (or Kebara Mousterian Hominid 2, KMH2) is a 60,000 year-old Levantine Neanderthal mid-body male skeleton. It was discovered in 1983 by Ofer Bar-Yosef, Baruch Arensburg, and Bernard Vandermeersch in a Mousterian layer of Kebara Cave, Isr ...
Neanderthal individual is presented by Gómez-Olivencia ''et al.'' (2018). * A study aiming to determine whether metabolic differences between competing populations of Neanderthals and anatomically modern humans alone could have accounted for Neanderthal extinction, as well as investigating Neanderthal fire use, is published by Goldfield, Booton & Marston (2018). * A study on the climate changes in Europe during the Middle–Upper
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
transition (based on speleothem records from the Ascunsă Cave and from the Tăușoare Cave, Romania), and on their implications for the replacement of Neanderthals by modern humans in Europe, is published by Fernández ''et al.'' (2018). * A study on the cultural attribution and stratigraphic integrity of the Neanderthal skeletal material from La Roche-à-Pierrot, Saint-Césaire ( France), evaluating whether there is reliable evidence for a Neanderthal-
Châtelperronian The Châtelperronian is a proposed industry of the Upper Palaeolithic, the existence of which is debated. It represents both the only Upper Palaeolithic industry made by Neanderthals and the earliest Upper Palaeolithic industry in central and sou ...
association at this site, is published by Gravina ''et al.'' (2018). * A study aiming to reconstruct 3D brain shape of Neanderthals and early ''Homo sapiens'' is published by Kochiyama ''et al.'' (2018). * A study on patterns of seasonal variation in the environment inhabited by Neanderthals, on Neanderthal life history and on their exposure to potential environmental hazards, as indicated by data from oxygen isotopes, trace element distributions and tooth development in two Neanderthals and one modern human from Payre (an archeological site in the Rhone Valley, France), is published by Smith ''et al.'' (2018). * A study on the human teeth from the Middle Pleistocene sites of Fontana Ranuccio and Visogliano ( Italy), aiming to identify the presence, if any, of a Neanderthal-like signature in the inner structure of these teeth, is published by Zanolli ''et al.'' (2018). * Evidence indicating that interbreeding between Neanderthals and modern humans led to the exposure of each species to novel viruses and to the exchange of adaptive alleles that provided resistance against these viruses is presented by Enard & Petrov (2018). * A study on Neanderthals and early Upper Paleolithic anatomically modern humans, reassessing the hypothesis of higher skull trauma prevalence among Neanderthals than among anatomically modern humans, is published by Beier ''et al.'' (2018). * A study on the age of the Buran-Kaya III site in Crimea is published by Prat ''et al.'' (2018), who interpret their findings as casting doubt on the survival of Neanderthal refuge zones in Crimea 28,000 years before present, and indicating that the human remains from this site represent some of the oldest evidence of anatomically modern humans in Europe. * A study on the use of plants by early modern humans during the
Middle Stone Age The Middle Stone Age (or MSA) was a period of African prehistory between the Early Stone Age and the Late Stone Age. It is generally considered to have begun around 280,000 years ago and ended around 50–25,000 years ago. The beginnings of pa ...
as indicated by analyses of phytoliths from the Pinnacle Point locality ( South Africa) is published by Esteban ''et al.'' (2018). * A study on the climatic changes in the
Lake Tana Lake Tana ( am, ጣና ሐይቅ, T’ana ḥāyik’i; previously Tsana) is the largest lake in Ethiopia and the source of the Blue Nile. Located in Amhara Region in the north-western Ethiopian Highlands, the lake is approximately long and wid ...
area in the last 150,000 years and their implications for early modern human dispersal out of Africa is published by Lamb ''et al.'' (2018). * A review of fossil, archaeological, genetic, and paleoenvironmental data on the origin of ''Homo sapiens'' is published by Scerri ''et al.'' (2018), who argue that ''Homo sapiens'' evolved within a set of interlinked groups living across Africa, whose connectivity changed through time, rather than from a single region/population in Africa. * A review of the archaeological and palaeoenvironmental datasets relating to the Middle–Late Pleistocene dispersal of ''Homo sapiens'' within and beyond Africa is published by Roberts & Stewart (2018), who argue that ''H. sapiens'' developed a new ecological niche. * A study on the evolution of modern human brain shape based on endocasts of ''Homo sapiens'' fossils from different geologic time periods is published by Neubauer, Hublin & Gunz (2018). * Late Pleistocene hominin tracks, probably produced by ''Homo sapiens'', are described from the Waenhuiskrans Formation ( South Africa) by Helm ''et al.'' (2018). * A study on the proxy evidence for environmental changes during past 116,000 years in lake sediment cores from the
Chew Bahir Lake Chew Bahir (Amharic: ጨው ባሕር ''č̣ew bāhir'', "salty lake") or Lake Istifanos, also called Stefanie, Basso Naebor and Chuwaha, is a lake in southern Ethiopia, located on the southwestern end of the Southern Nations, Nationalities ...
basin, south Ethiopia (close to the key hominin site of
Omo Kibish The Omo Kibish Formation or simply Kibish Formation is a geological formation in the Lower Omo Valley of southwestern Ethiopia. It is named after the nearby Omo River (Ethiopia), Omo River and is subdivided into four members known as Members I-IV. ...
), and on its implications for inferring the environmental context for dispersal of anatomically modern humans from northeastern Africa, is published by Viehberg ''et al.'' (2018). * A study on the age of a modern human mandible with teeth from the Misliya cave (
Mount Carmel Mount Carmel ( he, הַר הַכַּרְמֶל, Har haKarmel; ar, جبل الكرمل, Jabal al-Karmil), also known in Arabic as Mount Mar Elias ( ar, link=no, جبل مار إلياس, Jabal Mār Ilyās, lit=Mount Saint Elias/Elijah), is a c ...
, Israel) is published by Hershkovitz ''et al.'' (2018), who date the fossil as at least 177,000 years old, representing the oldest reported fossil of a member of the ''Homo sapiens'' clade found outside Africa. * A phalanx of a member of the species ''Homo sapiens'' is described from the ≈95–86,000 years old Al Wusta site ( An Nafud, Saudi Arabia) by Groucutt ''et al.'' (2018), representing the oldest directly dated fossil of ''Homo sapiens'' found outside Africa and the Levant. * A study on the effects of the
Toba supereruption The Toba eruption (sometimes called the Toba supereruption or the Youngest Toba eruption) was a supervolcanic eruption that occurred about 74,000 years ago during the Late Pleistocene at the site of present-day Lake Toba in Sumatra, Indonesia. I ...
in East Africa is published by Yost ''et al.'' (2018), who find no evidence of the eruption causing a volcanic winter in East Africa or a
population bottleneck A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts; or human activities such as specicide, widespread violen ...
among African populations of anatomically modern humans. * Microscopic glass shards characteristic of the Youngest Toba Tuff (ashfall from the Toba eruption), dated as approximately 74,000 years old, are described from two archaeological sites on the south coast of South Africa by Smith ''et al.'' (2018), who interpret their findings as indicating that humans in this region thrived through the Toba event and the ensuing full glacial conditions. * Evidence of human activity dating back to 78,000 years ago is reported from the Panga ya Saidi cave ( Kenya) by Shipton ''et al.'' (2018), who describe a rich technological sequence that includes lithic forms elsewhere associated with the
Middle Stone Age The Middle Stone Age (or MSA) was a period of African prehistory between the Early Stone Age and the Late Stone Age. It is generally considered to have begun around 280,000 years ago and ended around 50–25,000 years ago. The beginnings of pa ...
and the
Later Stone Age The Later Stone Age (LSA) is a period in African prehistory that follows the Middle Stone Age. The Later Stone Age is associated with the advent of modern human behavior in Africa, although definitions of this concept and means of studying it ar ...
. * A cross-hatched pattern drawn with an ochre crayon is reported from approximately 73,000-year-old
Middle Stone Age The Middle Stone Age (or MSA) was a period of African prehistory between the Early Stone Age and the Late Stone Age. It is generally considered to have begun around 280,000 years ago and ended around 50–25,000 years ago. The beginnings of pa ...
levels at Blombos Cave ( South Africa) by Henshilwood ''et al.'' (2018), pre-dating previously known abstract and figurative drawings by at least 30,000 years. * A study on the age of the cave art from the Kapova Cave ( Russia) is published by Dublyansky ''et al.'' (2018). * New
rock art In archaeology, rock art is human-made markings placed on natural surfaces, typically vertical stone surfaces. A high proportion of surviving historic and prehistoric rock art is found in caves or partly enclosed rock shelters; this type also ...
site, linkable chronoculturally to the Early Upper Paleolithic, is identified in Las Ventanas Cave ( Spain) by Cortés-Sánchez ''et al.'' (2018). * Rock art, including a
figurative painting Figurative art, sometimes written as figurativism, describes artwork (particularly paintings and sculptures) that is clearly derived from real object sources and so is, by definition, representational. The term is often in contrast to abstract a ...
of an animal dating to at least 40,000 years ago, is described from the Lubang Jeriji Saléh cave ( East Kalimantan, Indonesia) by Aubert ''et al.'' (2018). * A study on changes in
ochre Ochre ( ; , ), or ocher in American English, is a natural clay earth pigment, a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep orange or brown. It is also the name of the colours produced ...
use throughout an entire Upper Paleolithic sequence at
Hohle Fels The ''Hohle Fels'' () (also ''Hohlefels'', ''Hohler Fels'', German for "hollow rock") is a cave in the Swabian Jura of Germany that has yielded a number of important archaeological finds dating from the Upper Paleolithic. Artifacts found in the ...
cave ( Germany) is published by Velliky, Porr & Conard (2018). * A study on the timing and mechanisms of the initial colonization of the
Nwya Devu Nwya Devu (; ) is a high-altitude archaeological site on the Tibetan Plateau located in the eastern Changtang region of Tibet. At around above sea level, Nwya Devu is the highest known archaeological site from the Paleolithic and provides evidence ...
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
site ( Tibetan Plateau) by humans is published by Zhang ''et al.'' (2018). * A study on the human use of rainforest plant resources of prehistoric
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
, as indicated by data from phytoliths from the Fahien Rock Shelter sediments, is published by Premathilake & Hunt (2018). * A reassessment of the Late Pleistocene human occupation site at Leang Burung 2 (
Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...
, Indonesia), presenting new stratigraphic information and dating evidence from the site, is published by Brumm ''et al.'' (2018). * A study on the timing of arrival of anatomically modern humans to Southeast Asia and
Sahul __NOTOC__ Sahul (), also called Sahul-land, Meganesia, Papualand and Greater Australia, was a paleocontinent that encompassed the modern-day landmasses of mainland Australia, Tasmania, New Guinea, and the Aru Islands. Sahul was in the south-we ...
is published by
O'Connell O'Connell may refer to: People *O'Connell (name), people with O'Connell as a last name or given name Schools * Bishop Denis J. O'Connell High School, a high school in Arlington, Virginia Places * Mount O'Connell National Park in Queensland ...
''et al.'' (2018), who consider it unlikely that the artifacts from
Madjedbebe Madjedbebe (formerly known as Malakunanja II) is a sandstone rock shelter in Arnhem Land, in the Northern Territory of Australia, said to be the site of the oldest evidence of human habitation in the country. It is located about from the ...
(northern
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
) reported by Clarkson ''et al.'' (2017) are more than 50,000 years old. * A study investigating the most likely route used by early modern humans to colonize Sahul is published by Kealy, Louys & O'Connor (2018). * A study on the results of re-excavation of
Karnatukul The Little Sandy Desert (LSD) is a desert region in the state of Western Australia, lying to the east of the Pilbara and north of the Gascoyne regions. It is part of the Western Desert cultural bloc, Western Desert cultural region, and was dec ...
(Serpent's Glen rockshelter in the Australian
Little Sandy Desert The Little Sandy Desert (LSD) is a desert region in the state of Western Australia, lying to the east of the Pilbara and north of the Gascoyne regions. It is part of the Western Desert cultural region, and was declared an interim Australian ...
), as well as on the chronology of this site, is published by McDonald ''et al.'' (2018). * Genomic data from seven 15,000-year-old modern humans from Morocco, attributed to the Iberomaurusian culture, is presented by van de Loosdrecht ''et al.'' (2018), who report evidence of a genetic affinity of the studied individuals with early Holocene Near Easterners. * A study on charred food remains from Shubayqa 1, a Natufian hunter-gatherer site located in northeastern Jordan and dated to 14.6–11.6 ka
cal BP Before Present (BP) years, or "years before present", is a time scale used mainly in archaeology, geology and other scientific disciplines to specify when events occurred relative to the origin of practical radiocarbon dating in the 1950s. Becau ...
, is published by Arranz-Otaegui ''et al.'' (2018), who interpret their findings as providing the earliest empirical evidence for the preparation of bread-like products by Natufian hunter-gatherers, predating the emergence of agriculture by at least 4,000 years. * A study on the timing of first human arrival in Madagascar, as indicated by evidence of prehistoric human modification of multiple elephant bird postcranial elements, is published by Hansford ''et al.'' (2018). * A study on the timing of human colonization of Madagascar, as indicated by data from butchery marks on
megafauna In terrestrial zoology, the megafauna (from Greek μέγας ''megas'' "large" and New Latin ''fauna'' "animal life") comprises the large or giant animals of an area, habitat, or geological period, extinct and/or extant. The most common threshold ...
l bones, radiocarbon chronology of bone deposits and an analysis of the sedimentary record, is published by Anderson ''et al.'' (2018). * Description of the morphology of three partial human mandibles from the Niah Caves ( Sarawak, Malaysia) and a study on the age of these bones is published by Curnoe ''et al.'' (2018). * A study investigating whether the human population occupying
Beringia Beringia is defined today as the land and maritime area bounded on the west by the Lena River in Russia; on the east by the Mackenzie River in Canada; on the north by 72 degrees north latitude in the Chukchi Sea; and on the south by the tip ...
during the
Last Glacial Maximum The Last Glacial Maximum (LGM), also referred to as the Late Glacial Maximum, was the most recent time during the Last Glacial Period that ice sheets were at their greatest extent. Ice sheets covered much of Northern North America, Northern Eur ...
represented an example of human adaptation to an extreme environment, focusing on gene variations which might have conferred advantage in transmitting nutrients from mother to infant through breast milk under conditions of extremely low UV, is published by Hlusko ''et al.'' (2018). * A review of the genetic, archeological and paleoecological data on the course of the settlement of the Americas is published by Potter ''et al.'' (2018), who argue that available evidence is consistent with an inland migration through an ice-free corridor or with a migration through Pacific coastal routes (or both), but neither can be rejected. * A study on the timing of the latest Pleistocene glaciation in southeastern Alaska and its implication for inferring the route and timing of early human migration to the Americas is published by Lesnek ''et al.'' (2018). * A study on the technological traits of fluted projectile points from northern Alaska and Yukon, in combination with artifacts from further south in Canada, the
Great Plains The Great Plains (french: Grandes Plaines), sometimes simply "the Plains", is a broad expanse of flatland in North America. It is located west of the Mississippi River and east of the Rocky Mountains, much of it covered in prairie, steppe, an ...
, and eastern United States, evaluating the plausibility of historical relatedness and evolutionary patterns in the spread of fluted-point technology in North America in the latest Pleistocene and earliest Holocene, is published by Smith & Goebel (2018). * Late Pleistocene human footprints left by a minimum of three people are described from the Calvert Island ( British Columbia, Canada) by McLaren ''et al.'' (2018). * Associated human and
ground sloth Ground sloths are a diverse group of extinct sloths in the mammalian superorder Xenarthra. The term is used to refer to all extinct sloths because of the large size of the earliest forms discovered, compared to existing tree sloths. The Caribbe ...
tracks are described from the Rancholabrean deposits in the
White Sands National Park White Sands National Park is an American national park located in the state of New Mexico and completely surrounded by the White Sands Missile Range. The park covers in the Tularosa Basin, including the southern 41% of a field of white sand dun ...
( New Mexico, United States) by Bustos ''et al.'' (2018), who interpret their finding as evidence of humans actively stalking, harassing and likely hunting ground sloths in the late Pleistocene. * A study on the age of a series of sedimentary samples from the earliest cultural assemblage at the Gault Site ( Texas, United States), including a previously unknown, early projectile point technology unrelated to
Clovis Clovis may refer to: People * Clovis (given name), the early medieval (Frankish) form of the name Louis ** Clovis I (c. 466 – 511), the first king of the Franks to unite all the Frankish tribes under one ruler ** Clovis II (c. 634 – c. 657), ...
, is published by Williams ''et al.'' (2018). * A robust
lithic Lithic may refer to: *Relating to stone tools **Lithic analysis, the analysis of stone tools and other chipped stone artifacts **Lithic core, the part of a stone which has had flakes removed from it **Lithic flake, the portion of a rock removed to ...
projectile point assemblage is reported from the layers dated between ≈13.5 and 15.5 ka ago at the Debra L. Friedkin site (Texas, United States) by Waters ''et al.'' (2018). * A study on the age of the Anzick burial site ( Montana, United States) is published by Becerra-Valdivia ''et al.'' (2018). * The genome of two infants from the Upward Sun River site dated 11,500 years ago is sequenced, leading to the discovery of the Ancient Beringian ethnic group. * Scheib ''et al.'' (2018) sequence 91 ancient human genomes from California and southwestern Ontario, demonstrating the existence of two distinct ancestries in North America, and finding contribution from both of these ancestral populations in all modern Central and South Americans. * Posth ''et al.'' (2018) report genome-wide ancient DNA from 49 individuals from Central and South America, all dating to at least ~9,000 years ago, and interpret their finding as indicative of two previously undocumented genetic exchanges between North and South America. * A study on the history of dispersal and diversification of people within the Americas, based on data from ancient human genomes spanning Alaska to Patagonia, is published by Moreno-Mayar ''et al.'' (2018). * A study on the site context, geoarchaeology and material assemblages of the Valiente lithic workshop site ( Chile) is published by Méndez ''et al.'' (2018). * Evidence of plant domestication and food production from the early and middle Holocene site of Teotonio (southwestern
Amazonia The Amazon rainforest, Amazon jungle or ; es, Selva amazónica, , or usually ; french: Forêt amazonienne; nl, Amazoneregenwoud. In English, the names are sometimes capitalized further, as Amazon Rainforest, Amazon Forest, or Amazon Jungle. ...
, Brazil) is presented by Watling ''et al.'' (2018). * A study on the morphological affinity of the late
Paleolithic The Paleolithic or Palaeolithic (), also called the Old Stone Age (from Greek: παλαιός ''palaios'', "old" and λίθος ''lithos'', "stone"), is a period in human prehistory that is distinguished by the original development of stone too ...
human skull from the Zlatý kůň site in the Bohemian Karst ( Czech Republic) is published by Rmoutilová ''et al.'' (2018), who also evaluate whether it is possible to determine the sex of the Zlatý kůň individual based on its skull morphology. * A study on the
Mesolithic The Mesolithic (Greek: μέσος, ''mesos'' 'middle' + λίθος, ''lithos'' 'stone') or Middle Stone Age is the Old World archaeological period between the Upper Paleolithic and the Neolithic. The term Epipaleolithic is often used synonymous ...
site of Star Carr, indicating that there was intensive human activity at the site for several hundred years when the community was subject to multiple, severe, abrupt climate events that impacted air temperatures, the landscape and the ecosystem of the region, is published by Blockley ''et al.'' (2018). * A study on the tools preserved with Ötzi, evaluating their implications for inferring Ötzi's individual history, the reconstruction of his last days and his cultural and social background, is published by Wierer ''et al.'' (2018). * A study on the contents of Ötzi's stomach is published by Maixner ''et al.'' (2018). * A study on the compositions of the faunal and stone artifact assemblages at Liang Bua (
Flores Flores is one of the Lesser Sunda Islands, a group of islands in the eastern half of Indonesia. Including the Komodo Islands off its west coast (but excluding the Solor Archipelago to the east of Flores), the land area is 15,530.58 km2, and th ...
, Indonesia), aiming to determine the last appearance dates of '' Stegodon'', giant marabou stork,
Old World vulture Old World vultures are vultures that are found in the Old World, i.e. the continents of Europe, Asia and Africa, and which belong to the family Accipitridae, which also includes eagles, buzzards, kites, and hawks. Old World vultures are not clos ...
belonging to the genus '' Trigonoceps'', and Komodo dragon at the Liang Bua site, and to determine what raw materials were preferred by hominins from this site ~50,000–13,000 years ago and whether these preferences were similar to those seen in the stone artifact assemblages attributed to '' Homo floresiensis'' or to those attributed to modern humans, is published by Sutikna ''et al.'' (2018). * A study on genetic variation among a population of
Rampasasa Rampasasa pygmies is a name given to a group of families described as pygmoid or Negrito, native to Waemulu village in Kecamatan Wae Rii, Manggarai Regency, Flores, Indonesia, following the discovery of ''Homo floresiensis ''Homo floresiens ...
pygmies In anthropology, pygmy peoples are ethnic groups whose average height is unusually short. The term pygmyism is used to describe the phenotype of endemic short stature (as opposed to disproportionate dwarfism occurring in isolated cases in a pop ...
living close to the cave where remains of ''Homo floresiensis'' were discovered is published by Tucci ''et al.'' (2018), who find evidence of admixture with Denisovans and Neanderthals but no evidence for gene flow with other archaic hominins, and interpret their findings as indicating that at least two independent instances of hominin insular dwarfism occurred on
Flores Flores is one of the Lesser Sunda Islands, a group of islands in the eastern half of Indonesia. Including the Komodo Islands off its west coast (but excluding the Solor Archipelago to the east of Flores), the land area is 15,530.58 km2, and th ...
. * A synthesis of patterns and incidences of developmental abnormalities and anomalies in the Pleistocene ''Homo'' fossil record is published by Trinkaus (2018).


New taxa


Other eutherians

* Putative Cretaceous
metatheria Metatheria is a mammalian clade that includes all mammals more closely related to marsupials than to placentals. First proposed by Thomas Henry Huxley in 1880, it is a more inclusive group than the marsupials; it contains all marsupials as well ...
n '' Sinodelphys szalayi'' is reinterpreted as an early member of Eutheria by Bi ''et al.'' (2018). * A study on the anatomy of the
Early Cretaceous The Early Cretaceous ( geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 145  Ma to 100.5 Ma. Geology Pro ...
eutherian '' Endotherium niinomii'' is published by Wang ''et al.'' (2018), who consider this species to be a valid taxon. * Napoli ''et al.'' (2018) digitally visualize and describe the endocast of a
taeniodont Taeniodonta ("banded teeth") is an extinct early group of Cimolesta, cimolestid mammals known from the Maastrichtian to the Eocene. Taeniodonts evolution, evolved quickly into highly specialized digging animals, and varied greatly in size, from r ...
'' Onychodectes tisonensis''. * A study evaluating when solenodons split from other eulipotyphlans, based on updated fossil calibrations, is published by Springer, Murphy & Roca (2018), who place the split between solenodons and other eulipotyphlans in the Late Cretaceous. * Fragment of the mandible of the mole '' Mongoloscapter zhegalloi'' is described from the Late
Oligocene The Oligocene ( ) is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that define the epoch are well identified but the ...
Tsakhir-Ula locality ( Mongolia) by Lopatin (2018), representing the second record of ''Mongoloscapter'' reported so far. * A study comparing the size and morphology of the common shrew (''Sorex araneus''), '' Sorex runtonensis'', the
tundra shrew The tundra shrew (''Sorex tundrensis'') is a small shrew found in Alaska, the northern Yukon Territory, the MacKenzie Delta region of the Northwest Territories, extreme northwestern British ColumbiaNagorsen, D. 1996. Opossums, shrews and moles of ...
(''S. tundrensis'') and the
Caucasian shrew The Caucasian shrew (''Sorex satunini'') is a species of mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding ...
(''S. satununi'') with the type material of the fossil shrew '' Sorex subaraneus'' (in order to either support or falsify the validity of ''S. subaraneus'' and the putative ancestry of the extant common shrew) is published by Rzebik-Kowalska & Pereswiet-Soltan (2018). * A study on the phylogenetic relationships of the gymnure ''Deinogalerix'' within the tribe Galericini is published by Borrani ''et al.'' (2018). * A study on the systematic usefulness of the
humerus The humerus (; ) is a long bone in the arm that runs from the shoulder to the elbow. It connects the scapula and the two bones of the lower arm, the radius and ulna, and consists of three sections. The humeral upper extremity consists of a roun ...
in Proterotheriidae, proterotheriid Litopterna, litopterns is published by Corona, Perea & Ubilla (2018), who consider the species ''Proterotherium berroi'' Kraglievich (1930) to be a probable Synonym (taxonomy), synonym of ''Neolicaphrium recens''. * A study on the diversity of shapes of snout in Notoungulata, notoungulates and on the evolution of the wide range of shapes of snout in this group of mammals is published by Gomes Rodrigues ''et al.'' (2018). * A study on the variation of teeth shape and on the factors affecting changes in the shape of teeth of Notopithecidae, notopithecid notoungulates is published by Scarano & Vera (2018). * A study on the variation of teeth shape in late Miocene members of the Hegetotheriidae, hegetotheriid notoungulate genus ''Paedotherium'', as well as its implications for the systematics and phylogenetic relationships of the late Miocene species of ''Paedotherium'', is published by Ercoli ''et al.'' (2018). * A study on the variability of the diagnostic characters in the fossils of members of the hegetotheriid notoungulate genus ''Tremacyllus'' is published by Sostillo, Cerdeño & Montalvo (2018), who consider the species ''T. incipiens'' to be a
junior synonym The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linna ...
of the species ''T. impressus''. * New fossil remains of Pachyrukhinae, pachyrukhine hegetotheriid notoungulates are described from the Huayquerías del Este (Mendoza Province, Mendoza, Argentina) by Vera & Ercoli (2018), who consider the species ''Tremacyllus subdiminutus'' to be a synonym of ''T. impressus''. * Fernández-Monescill ''et al.'' (2018) provide muscular reconstruction and infer functional properties of the forelimb of the mesotheriid notoungulate ''Plesiotypotherium achirense''. * A study on the tooth wear, tooth replacement and enamel microstructure in an Odd-toed ungulate, perissodactyl-like ungulate ''Cambaytherium'' is published by von Koenigswald ''et al.'' (2018). * Anatomical redescription of the Periptychidae, periptychid species ''Periptychus carinidens'' is published by Shelley, Williamson & Stephen L. Brusatte, Brusatte (2018). * Description of new fossil material of the Hyaenodonta, hyaenodont species ''Prionogale breviceps'' from the Miocene of Kenya and Uganda, and a study on the anatomy of teeth of ''Namasector soriae'', is published by Morales & Martin Pickford, Pickford (2018). * Partial skull of ''Hyaenodon leptorhynchus'' is described from the Chattian deposits in Séon Saint-André (Marseille, France) by Solé ''et al.'' (2018). * A study on the early Pleistocene Leporidae, leporid fossils from the Roland Springs Ranch Locality 1 ( Texas, United States), considered against the backdrop of Neogene-Quaternary faunal turnover that included the radiation within the subfamily Leporinae, is published by Moretti (2018).


Other mammals

* A diverse footprint assemblage dominated by small mammal tracks is described from the Lower Cretaceous Patuxent Formation (Maryland, United States) by Stanford ''et al.'' (2018), who name a new mammal ichnotaxon ''Sederipes goddardensis''. * A description of the middle ear ossicles of ''Arboroharamiya'' is published by Meng ''et al.'' (2018). * Asymmetric bicrural stapes is reported in the Jurassic Multituberculata, multituberculate ''Pseudobolodon oreas'' by Schultz, Ruf & Martin (2018). * New specimens of the cladotherian species ''Palaeoxonodon ooliticus'' (two partial dentaries) are described from the Middle Jurassic Kilmaluag Formation (Isle of Skye, Scotland, United Kingdom) by Panciroli, Benson & Butler (2018). * A fossil trackway produced by a mouse-sized primitive mammal, assigned to the ichnotaxon ''Ameghinichnus patagonicus'', and deviating from the usual bilateral symmetry of posture and motion, is described from the Middle Jurassic of Patagonia, Argentina by Kuznetsov & Panyutina (2018), who interpret the tracks as most likely produced by a mammal carrying a heavy load on the left side of its body, plausibly a milk-producing mother carrying her babies.


References

{{Reflist, 2 2018 in paleontology 2010s in paleontology 2018 in science Prehistoric mammals