This list of

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

fishes Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

described in 2017 is a list of new taxa of

jawless vertebrates Agnatha (, Ancient Greek 'without jaws') is an infraphylum of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct ( conodonts and ostracoderms) species. Among recent animals, cyclosto ...

, placoderms,

acanthodians Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes), typically considered a paraphyletic group. They are currently considered to represent a grade of various fish lineages leading up to the extant Chondrichthyes, which ...

, fossil

cartilaginous fishes Chondrichthyes (; ) is a class that contains the cartilaginous fishes that have skeletons primarily composed of cartilage. They can be contrasted with the Osteichthyes or ''bony fishes'', which have skeletons primarily composed of bone tissue ...

bony fishes Osteichthyes (), popularly referred to as the bony fish, is a diverse superclass of fish that have skeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes, which have skeletons primarily composed of cartilage ...

and other fishes of every kind that are scheduled to be described during the year 2017, as well as other significant discoveries and events related to

paleontology Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (roughly 11,700 years before present). It includes the study of fossi ...

of fishes that are scheduled to occur in the year 2017. The list only includes taxa at the level of

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

Research

* A study on the marine fish extinction rates during background and mass extinctions from the

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...

through Early Jurassic, compared with extinction trajectories of marine invertebrates, is published by Vázquez & Clapham (2017). * A study on the ecological diversity and lifestyles of thelodonts as indicated by their squamation patterns is published by Ferrón & Botella (2017). * A study on the phylogenetic relationships of jawless fish assigned to Cyathaspididae and

Pteraspidiformes Pteraspidiformes is an extinct order of heterostracan agnathan vertebrates known from extensive fossil remains primarily from Early Devonian strata of Europe and North America, and from Upper Silurian Canada. Anatomy A pteraspidiform heter ...

is published by Randle & Sansom (2017). * A study on the phylogenetic relationships of members of the group Pteraspidiformes is published by Randle & Sansom (2017). * New material of ''

Cornovichthys ''Cornovichthys'' is an extinct genus of jawless fish in the super class Anaspidomorphi Anaspidomorphi (anaspidomorphs) is an extinct superclass of jawless fish. According to the newer taxonomy based on the work of Nelson, Grande and Wilson 2 ...

blaauweni'' and ''Achanarella trewini'' is described from the

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...

Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the ...

by van der Brugghen (2017), who considers both species to represent the same euphaneropid taxon, which he considers to be a member of the genus '' Euphanerops'' belonging or related to the species ''Euphanerops longaevus''. * A study on the phylogenetic relationships of early

jawed vertebrates Gnathostomata (; from Greek: (') "jaw" + (') "mouth") are the jawed vertebrates. Gnathostome diversity comprises roughly 60,000 species, which accounts for 99% of all living vertebrates, including humans. In addition to opposing jaws, living ...

, indicating that

placoderms Placodermi (from Greek πλάξ 'plate' and δέρμα 'skin', literally 'Plate (animal anatomy), plate-skinned') is a Class (biology), class of armoured prehistoric fish, known from fossils, which lived from the Silurian to the end of the Devoni ...

are a monophyletic group, is published by King ''et al.'' (2017). * A study on the

morphology Morphology, from the Greek and meaning "study of shape", may refer to: Disciplines *Morphology (archaeology), study of the shapes or forms of artifacts *Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies, ...

of the gill arches of the type specimen of ''

Paraplesiobatis ''Paraplesiobatis heinrichsi'' is a lightly armored Pseudopetalichthyida, pseudopetalichthyid placoderm from the Hunsrück Slate, Hunsrückschiefer Lagerstätte of Early Devonian Germany. The Type specimen, type and only known specimen is an arti ...

heinrichsi'' is published by Brazeau ''et al.'' (2017). * Description of the anatomy of a three-dimensionally preserved skull of the placoderm '' Romundina stellina'' is published by Dupret ''et al.'' (2017). * A study on the putative dental plate of ''Romundina stellina'' described by Rücklin & Donoghue (2015) is published by Smith ''et al.'' (2017), who reject the interpretation of the specimen as a dental plate. * A redescription of '' Bothriolepis jeremejevi'' Rohon (1900) from the

(

Famennian The Famennian is the latter of two faunal stages in the Late Devonian Epoch. The most recent estimate for its duration estimates that it lasted from around 371.1 million years ago to 359.3 million years ago. An earlier 2012 estimate, still used b ...

) Sosnogorsk Formation (

Komi Republic The Komi Republic (russian: Республика Коми; kv, Коми Республика), sometimes simply referred to as Komi, is a republic of Russia located in Eastern Europe. Its capital is the city of Syktyvkar. The population of the ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

) is published by Lukševičs, Beznosov & Stūris (2017), who rerank this taxon as a subspecies of ''Bothriolepis leptocheira''. * A study on the plates of armour of arthrodire placoderms from the

( Emsian) of

Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to ...

, evaluating whether their differences can be considered distinctive between species, is published by Antczak & Berkowski (2017). * A description of a nearly complete specimen of ''

Titanichthys ''Titanichthys'' is an extinct genus of giant, aberrant marine placoderm from shallow seas of the Late Devonian of Morocco, Eastern North America, and possibly Europe. Many of the species approached ''Dunkleosteus'' in size and build. Unlike ...

'' from the

Cleveland Shale and a study on the phylogenetic relationships of the taxon is published by Boyle & Ryan (2017). * Redescription of the

arthrodire species '' Szelepis yunnanensis'', a revision of the fossil material attributed to members of this species and a study on the phylogenetic relationships of the species is published by Dupret, Zhu & Wang (2017). * A study on the placoderm jaw

and function based on data from a buchanosteid specimen from the Early

limestones (~400 Ma) at Burrinjuck, near Canberra (

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 ...

), is published by Hu, Lu & Young (2017). * A study on the relationship between the locomotory patterns and the morphological variability of the tail fins in extant sharks, and its implications for the possible morphology of the tail fin of '' Dunkleosteus terrelli'' is published by Ferrón, Martínez-Pérez & Botella (2017). * A study on the sequence of

ossification Ossification (also called osteogenesis or bone mineralization) in bone remodeling is the process of laying down new bone material by cells named osteoblasts. It is synonymous with bone tissue formation. There are two processes resulting in t ...

of skeletal elements in the growth series of the acanthodian '' Acanthodes lopatini'' from the lower

Tournaisian The Tournaisian is in the ICS geologic timescale the lowest stage or oldest age of the Mississippian, the oldest subsystem of the Carboniferous. The Tournaisian age lasted from Ma to Ma. It is preceded by the Famennian (the uppermost stage ...

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of ...

(

) is published by Beznosov (2017). * A study on the anatomy of the jaws of the

ischnacanthiform acanthodian species '' Euryacanthus rugosus'' and '' Tricuspicanthus gannitus'', as well as its implications for jaw and tooth occlusion in these taxa, is published by Blais (2017). * A study on the morphological and histological changes of scales during

ontogeny Ontogeny (also ontogenesis) is the origination and development of an organism (both physical and psychological, e.g., moral development), usually from the time of fertilization of the egg to adult. The term can also be used to refer to the stu ...

in the acanthodian ''

Triazeugacanthus ''Triazeugacanthus'' is an extinct genus of spiny shark from the Devonian of Canada. It contains a single species, ''Triazeugacanthus affinis''. Individuals were 5-6 cm long. Each fin A fin is a thin component or appendage attached to a larg ...

affinis'' is published by Chevrinais, Sire & Cloutier (2017). * Chevrinais, Sire & Cloutier (2017) describe the

of ''Triazeugacanthus affinis'' and compare it to the ontogeny of other “acanthodians”, cartilaginous fishes and bony fishes. * A study on the anatomy of the pectoral region of the skeleton of '' Doliodus problematicus'' is published by Maisey ''et al.'' (2017). * A study on the phylogenetic relationships of the

( Emsian) species ''"

Ctenacanthus ''Ctenacanthus'' (from el, κτείς , 'comb' and el, ἄκανθα , 'spine') is an extinct genus of ctenacanthiform chondrichthyan. Remains have been found in the Bloyd Formation in Arkansas, United States (Carboniferous period) and in Sout ...

" latispinosus'' is published by Burrow ''et al.'' (2017), who transfer this species to the genus '' Doliodus''. * A study on the diversity and relative abundance of fish from the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...

(late

Santonian The Santonian is an age in the geologic timescale or a chronostratigraphic stage. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series. It spans the time between 86.3 ± 0.7 mya (million years ago) and 83.6 ± 0.7 mya. The ...

)

Milk River Formation The Milk River Formation is a sandstone-dominated stratigraphic unit of the Western Canada Sedimentary Basin in southern Alberta, Canada. It was deposited in near-shore to coastal environments during Late Cretaceous (late Santonian to early Campani ...

(

Alberta Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

) is published by Brinkman, Neuman & Divay (2017). * A study on the phylogenetic relationships of ''

Palaeospondylus ''Palaeospondylus'' is a fish-like fossil vertebrate. Its fossils are described from the Achanarras slate quarry in Caithness, Scotland. The fossil as preserved is carbonized, and indicates an eel-shaped animal up to in length. The skull, whic ...

gunni'' is published by Johanson ''et al.'' (2017), who interpret the species as a

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 ...

-cartilaginous fish. * Partial braincases of two gigantic ctenacanthiform sharks, estimated to attain lengths up to 7 m and body weights of 1500–2500 kg, are described from the

Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...

(Upper

Pennsylvanian Pennsylvanian may refer to: * A person or thing from Pennsylvania * Pennsylvanian (geology) The Pennsylvanian ( , also known as Upper Carboniferous or Late Carboniferous) is, in the International Commission on Stratigraphy, ICS geologic timesca ...

) Finis Shale (

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

) by Maisey ''et al.'' (2017). * A study on the anatomy of the braincase of a

cartilaginous fish '' Dwykaselachus oosthuizeni'' is published by Coates ''et al.'' (2017). * Partial skeleton of a non-marine elasmobranch of uncertain phylogenetic placement is described from the Late Jurassic Talbragar Fossil Fish Bed (

) by Turner & Avery (2017). * A hybodontiform tooth and a euselachian

dermal denticle A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as we ...

are described from the

(

Wuchiapingian In the geologic timescale, the Wuchiapingian or Wujiapingian (from in the Liangshan area of Hanzhong, Shaanxi Province) is an age or stage of the Permian. It is also the lower or earlier of two subdivisions of the Lopingian Epoch or Series. The ...

) of

Hydra Island Hydra, or Ydra or Idra ( el, Ύδρα, Ýdra, , Arvanitika: Nύδρα/Nidhra), is one of the Saronic Islands of Greece, located in the Aegean Sea between the Myrtoan Sea and the Argolic Gulf. It is separated from the Peloponnese by a narrow str ...

(

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders with ...

) by Argyriou ''et al.'' (2017). * A reappraisal of the type and newly discovered fossil material of the hybodontoid '' Reticulodus synergus'' from Upper Triassic strata in

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

and

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...

(

) and a study on the

heterodont In anatomy, a heterodont (from Greek, meaning 'different teeth') is an animal which possesses more than a single tooth morphology. In vertebrates, heterodont pertains to animals where teeth are differentiated into different forms. For example, ...

y in this species is published by Voris & Heckert (2017). * A study on the impact of the

Cretaceous–Paleogene extinction event The Cretaceous–Paleogene (K–Pg) extinction event (also known as the Cretaceous–Tertiary extinction) was a sudden mass extinction of three-quarters of the plant and animal species on Earth, approximately 66 million years ago. With the ...

on the ecological diversity of the

mackerel sharks The Lamniformes (, from Greek ''lamna'' "fish of prey") are an order of sharks commonly known as mackerel sharks (which may also refer specifically to the family Lamnidae). It includes some of the most familiar species of sharks, such as the gre ...

is published by Belben ''et al.'' (2017). * A study on the environment in the area corresponding to the present-day

Amazon basin The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivi ...

in the

Miocene The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recen ...

as indicated by data from the shark and ray fossils from the Pirabas Formation (

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

) is published by Aguilera ''et al.'' (2017). * Evidence for the existence of regional endothermy in otodontid and cretoxyrhinid sharks is presented by Ferrón (2017). * Bite marks on fossil marine mammal bones from the Miocene Pisco Formation (

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

), attributed to '' Carcharocles megalodon'', are described by Collareta ''et al.'' (2017). * Shark assemblage consisting mainly of the teeth of small (probably juvenile) specimens of the copper shark (''Carcharhinus brachyurus''), interpreted as a secondary nursery area for copper sharks, is described from the

Pisco Formation (

) by Landini ''et al.'' (2017). * A study on the methods which can be used to support taxonomic identifications of fossil sharks known from isolated teeth is published by Marramà & Kriwet (2017), who consider fossil sand tiger shark genus '' Brachycarcharias'' to be distinct from the genus '' Lamna''. * A study on the

of the cushion-shaped tooth-bearing plates from the

Silurian The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million years ago ( Mya), to the beginning of the Devonian Period, Mya. The Silurian is the shortest period of the Paleozo ...

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, a ...

attributed to '' Lophosteus superbus'', as well as on tooth addition, shedding and replacement in this taxon, is published by Chen ''et al.'' (2017). * Redescription of the

ray-finned fish ''

Elonichthys ''Elonichthys'' is an extinct genus of prehistoric bony fish. The genus is represented by several species from Carboniferous and Permian of Europe, Greenland, South Africa, and North America. Species See also * Prehistoric fish The evo ...

fritschi'' is published by Schindler (2017), who presents the first reconstruction of the skull of this species. * Fish belonging to the extinct group Scanilepiformes are interpreted as

- polypterids by Giles ''et al.'' (2017). * A study aiming to establish whether body size was linked to extinction or survival of non- teleostean actinopterygians during the

Permian–Triassic extinction event The Permian–Triassic (P–T, P–Tr) extinction event, also known as the Latest Permian extinction event, the End-Permian Extinction and colloquially as the Great Dying, formed the boundary between the Permian and Triassic geologic periods, as ...

is published by Puttick ''et al.'' (2017). * Description of fish fossils from the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of th ...

(

) Iharkút vertebrate site (

Bakony Bakony () is a mountainous region in Transdanubia, Hungary. It forms the largest part of the Transdanubian Mountains. It is located north of Lake Balaton and lies almost entirely in Veszprém county. The Bakony is divided into the Northern and ...

Mountains,

Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia a ...

) is published by Szabó & Ősi (2017). * A redescription of ''

Kyphosichthys ''Kyphosichthys'' is an extinct genus of basal actinopterygian bony fish known from the lower Middle Triassic (Anisian) marine deposits (Guanling Formation) in Luoping, eastern Yunnan Province, southwestern China. The species is the first known ...

grandei'' and a study on the phylogenetic relationships of the species is published by Sun & Ni (2017), who name the new family Kyphosichthyidae. * A study on the phylogenetic relationships of the

species '' Sorbinicharax verraesi'' is published by Mayrinck ''et al.'' (2017). * Taverne & Liston (2017) transfer the species '' Neopachycormus birmanicus'' from the

Myanmar Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...

, originally thought to be a member of the family

Pachycormidae Pachycormiformes is an extinct order of marine ray-finned fish known from the Early Jurassic to the end of the Cretaceous. It only includes a single family, Pachycormidae. They were characterized by having serrated pectoral fins (though more rece ...

, to the family

Plethodidae Plethodidae is an extinct family of teleost fish that existed during the Late Cretaceous period. Fossils are known from North America, North Africa, and Europe. Description Plethodids possessed thin, angelfish-like bodies and often had high do ...

and to the genus '' Dixonanogmius''. * A study on the

osteology Osteology () is the scientific study of bones, practised by osteologists. A subdiscipline of anatomy, anthropology, and paleontology, osteology is the detailed study of the structure of bones, skeletal elements, teeth, microbone morphology, funct ...

and phylogenetic relationships of '' Signeuxella preumonti'' from the

Middle Jurassic The Middle Jurassic is the second epoch of the Jurassic Period. It lasted from about 174.1 to 163.5 million years ago. Fossils of land-dwelling animals, such as dinosaurs, from the Middle Jurassic are relatively rare, but geological formations co ...

Stanleyville Formation (

Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...

) is published by Taverne (2017). * The leptolepid fauna from the Early Jurassic ''

Lagerstätte A Lagerstätte (, from ''Lager'' 'storage, lair' '' Stätte'' 'place'; plural ''Lagerstätten'') is a sedimentary deposit that exhibits extraordinary fossils with exceptional preservation—sometimes including preserved soft tissues. These for ...

n'' of

Grimmen Grimmen (; csb, Grzëmié) is a town in Vorpommern-Rügen, a district in the Bundesland Mecklenburg-Vorpommern, Germany. Prior to 2011, when district reforms were made in Mecklenburg-Vorpommern, it was the capital of the now bygone Nordvorpommer ...

and

Dobbertin Dobbertin is a municipality in the Ludwigslust-Parchim district, in Mecklenburg-Vorpommern, Germany. An important sight is Dobbertin Abbey. The municipality is situated in a landscape with many lakes and woods. It stands on the largest lake in the ...

(

Mecklenburg-Vorpommern Mecklenburg-Vorpommern (MV; ; nds, Mäkelborg-Vörpommern), also known by its anglicized name Mecklenburg–Western Pomerania, is a state in the north-east of Germany. Of the country's sixteen states, Mecklenburg-Vorpommern ranks 14th in po ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

) is described by Konwert & Stumpf (2017). * A redescription 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 ...

ellimmichthyiform '' Scutatuspinosus itapagipensis'' and a study on the phylogenetic relationships of the species is published by de Figueiredo & Ribeiro (2017). * Redescription and a study on the phylogenetic relationships of the clupeomorph species ''

Gasteroclupea ''Gasteroclupea'' is a genus of prehistoric clupeiform fish that is related to modern anchovies and herrings. Its fossils date back to the Maastrichtian stage of the Late Cretaceous period. Fossils of the genus have been found in the Yacoraite ...

branisai'' from the

Paleocene The Paleocene, ( ) or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), E ...

El Molino Formation The El Molino Formation is a Maastrichtian geologic formation pertaining to the Puca Group of central Bolivia. The formation comprises fine-grained sandstones and sandy limestones with stromatolites deposited in a shallow marine to lacustrine env ...

(

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 Marramà & Carnevale (2017). * A redescription of ''" Chanos" leopoldi'' from the Cretaceous ( Albian) Limestones of Pietraroja (

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

) and a study on the phylogenetic relationships of the species is published by Taverne & Capasso (2017), who reinstate the distinct genus ''

Caeus ''Caeus'' is an extinct genus of prehistoric marine ray-finned fish, closely related to the modern milkfish. It contains a single species, ''C. leopoldi'' from the Early Cretaceous of the Pietraroja Plattenkalk, Italy. It is one of the largest t ...

'' for this species. * A study on the phylogenetic relationships of living and fossil members of the family Ictaluridae, and on time of origin of the clade, is published by Arce‐H., Lundberg & O'Leary (2017), who present the first combined data analysis of morphological and genetic data for Ictaluridae that also includes fossil species. *

Cyprinid Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest verte ...

fossils are described from the

(

Serravallian The Serravallian is, in the geologic timescale, an List of time periods, age or a stage (stratigraphy), stage in the middle Miocene epoch (geology), Epoch/series (stratigraphy), Series, which spans the time between 13.82 annum, Ma and 11.63 Ma (m ...

) Shang Youshashan Formation (

Qaidam Basin The Qaidam, Tsaidam, or Chaidamu Basin is a hyperarid basin that occupies a large part of Haixi Prefecture in Qinghai Province, China. The basin covers an area of approximately , one-fourth of which is covered by saline lakes and playas. Around ...

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 Song ''et al.'' (2017). * A redescription of the

Eocene The Eocene ( ) Epoch is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene' ...

barracudina '' Holosteus esocinus'' and a study on the phylogenetic relationships of the species is published by Marramà & Carnevale (2017). * A redescription of the holotype specimen of '' Bajaichthys elegans'' and a study on the phylogenetic relationships of the species is published by Davesne, Carnevale & Friedman (2017). * A study on the phylogenetic relationships of the fossil fundulid species '' Fundulus detillae'', '' Fundulus lariversi'' and '' Fundulus nevadensis'' is published by Ghedotti & Davis (2017). * A study on the phylogeny and evolutionary history of the Tetraodontiformes is published by Arcila & Tyler (2017), who detect a major extinction of members of the group during the

Paleocene–Eocene Thermal Maximum The Paleocene–Eocene thermal maximum (PETM), alternatively (ETM1), and formerly known as the "Initial Eocene" or "", was a time period with a more than 5–8 °C global average temperature rise across the event. This climate event o ...

. * A study on the morphological changes that occurred during

of the fossil

weever Weevers (or weeverfish) are nine extant taxon, extant species of fishes of Family (biology), family Trachinidae, order Trachiniformes, part of the Percomorpha clade. They are long (up to 37 cm), mainly brown in color, and have venomous s ...

species ''

Trachinus minutus ''Trachinus'' is a genus of weevers, order Perciformes that consists of seven extant species. Six of the genus representatives inhabit the waters of Eastern Atlantic Ocean, but only one, '' Trachinus cornutus'', inhabits the South-Eastern Pacifi ...

'' is published by Přikryl (2017). *

Cichlid Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this ...

fossils are described from the

and

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

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 ...

Lucas Lucas or LUCAS may refer to: People * Lucas (surname) * Lucas (given name) Arts and entertainment * Luca Family Singers, also known as "lucas ligner en torsk" * ''Lucas'' (album) (2007), an album by Skeletons and the Kings of All Cities * ''L ...

''et al.'' (2017), representing the first known fossil record of cichlids in

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

. * Redescription of the

priacanthid species ''

Pristigenys ''Pristigenys'' is a genus of marine ray-finned fish in the family Priacanthidae. It contains five extant species and one extinct species, ''P. substriata'', which is known from fossils found in the Eocene of Monte Bolca, Italy. The extant speci ...

substriata'' is published by Carnevale ''et al.'' (2017). * Isolated

barracuda A barracuda, or cuda for short, is a large, predatory, ray-finned fish known for its fearsome appearance and ferocious behaviour. The barracuda is a saltwater fish of the genus ''Sphyraena'', the only genus in the family Sphyraenidae, which was ...

teeth are described from the

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

by Gottfried ''et al.'' (2017). * A study on the structure and

homology Homology may refer to: Sciences Biology *Homology (biology), any characteristic of biological organisms that is derived from a common ancestor * Sequence homology, biological homology between DNA, RNA, or protein sequences *Homologous chrom ...

of the lung plates of extant and fossil coelacanths is published by Cupello ''et al.'' (2017). * The first direct evidence for feeding on

conodont Conodonts (Greek ''kōnos'', "cone", + ''odont'', "tooth") are an extinct group of agnathan (jawless) vertebrates resembling eels, classified in the class Conodonta. For many years, they were known only from their tooth-like oral elements, which ...

s by Late

coelacanths (a single conodont element from the gut content of a possible specimen of ''

Diplocercides ''Diplocercides'' is a genus of prehistoric lobe-finned fish belonging to the coelacanth group (Actinistia or Coelacanthimorpha) which lived during the Late Devonian period (between 370 and 397 million years). Fossils of ''Diplocercides'' hav ...

'', as well as several conodont elements detected within a

coprolite A coprolite (also known as a coprolith) is fossilized feces. Coprolites are classified as trace fossils as opposed to body fossils, as they give evidence for the animal's behaviour (in this case, diet) rather than morphology. The name is de ...

) is reported from the

deposits in Świętokrzyskie Mountains (

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous ...

) by Zatoń ''et al.'' (2017). * A study on the phylogenetic relationships, rates of origination and extinction, and trends in body size changes of the post-

fossil

lungfish Lungfish are freshwater vertebrates belonging to the order Dipnoi. Lungfish are best known for retaining ancestral characteristics within the Osteichthyes, including the ability to breathe air, and ancestral structures within Sarcopterygii, i ...

is published by Kemp, Cavin & Guinot (2017). * A study on the phylogenetic relationships of the

lungfish known from the tooth plates recovered from the Ain el Guettar Formation (

Tunisia ) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , ...

) is published by Cau (2017). * A redescription of the

'' Pentlandia macroptera'' is published by Challands and den Blaauwen (2017). * A study on the evolution of eye size in early

tetrapod Tetrapods (; ) are four-limbed vertebrate animals constituting the superclass Tetrapoda (). It includes extant and extinct amphibians, sauropsids ( reptiles, including dinosaurs and therefore birds) and synapsids (pelycosaurs, extinct theraps ...

s and in fish belonging to the lineage that gave rise to tetrapods, as well as on the impact of the eye size on the eye performance while viewing objects through water and through air is published by MacIver ''et al.'' (2017). * A study on the evolution of forelimb musculature from the lobe-finned fish to early tetrapods is published online by Molnar ''et al.'' (2017). * A history of the first articulated fossil fishes discovered in the United States (Early Jurassic, Newark Supergroup) is published by Brignon (2017).

Research

New taxa

Jawless vertebrates

Placoderms

Cartilaginous fishes

Bony fishes

References