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Paleobiota Of The Liushu Formation
The Liushu formation is a geological formation in the Gansu province of China that spans up to 100 m thick and is widely distributed within the Linxia Basin, with a Paleomagnetism, paleomagnetic age of between 11 and 6.4 Year, Mya (Late Miocene, Upper/Late Miocene). The formation is divided into three parts which represent three different ages, generally referred to as the "upper part" (youngest, at 6-7 Year, mya), the "middle part" (intermediate, at 9 to 7.6 mya. Also known as the Dashengou fauna, and the "lower part" (oldest). Mammals Ungulata Perissodactyla The Liushu formation displays a lineage of Elasmotheriine rhinoceros throughout its stratigraphy. ''Iranotherium'' is restricted to the middle part of the Geological formation, formation but remains become absent in the overlying layers, the only Elasmotheriine that can be found in the upper layers is ''Sinotherium''. Artiodactyla Carnivora Caniformia Feliformia Glires Proboscidea Birds Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lishu Formation Ecosystem
Lishu or Li Shu may refer to: * Li Shu (Tang dynasty) (740-791), a Tang dynasty prince * Lishu County, in Jilin, China * Lishu District, in Jixi, Heilongjiang, China * Lishu station, Suzhou Rail Transit, China * Clerical script The clerical script (; Japanese: 隷書体, ''reishotai''; Korean: 예서 (old spelling 례서); Vietnamese: lệ thư), sometimes also chancery script, is a style of Chinese writing which evolved from the late Warring States period to the Qi ... or lishu, a style of Chinese calligraphy See also * Li Su (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizotheriinae
Schizotheriines are one of the two subfamilies of the extinct family Chalicotheriidae, a group of herbivorous odd-toed ungulate (perissodactyl) mammals that lived from the Eocene to the Pleistoscene. The other clade is the Chalicotheriinae. Both clades had claws rather than hooves on their front feet, an adaptation understood as related to feeding. Schizotheriines also had claws on their hind feet. The fossils of both groups are found in environments that had trees and shrubs. While chalicotheriines developed very derived body forms, schizotheriines remained basically similar in shape to other perissodactyls such as horses and tapirs. Like most forest-dwelling ungulates, they had long necks and forelimbs longer than their hindlimbs. Schizotheriines had longer, higher-crowned cheek teeth than chalicotheriines, which indicates they typically fed on tougher vegetation. The sediments where their fossils are found show they also lived in a wider range of environments, from moist forest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dongxiang County, Jiangxi
Dongxiang () is a district of Jiangxi province, People's Republic of China. It is under the jurisdiction of the prefecture-level city A prefecture-level city () or prefectural city is an administrative division of the People's Republic of China (PRC), ranking below a province and above a county in China's administrative structure. During the Republican era, many of China ... of Fuzhou. Administrative divisions In the present,Dongxiang District has 9 towns and 5 townships. ;9 towns ;5 townships Demographics The population of the district was in 1999. National Population Statistics Materials by County and City - 1999 Period, ''in'China County & City Population 1999, Harvard China Historical GIS/ref> Climate Transportation Fuzhou East Railway Station () is located on the northern outskirts of Dongxiang's county seat (). Notes and references External links Government site- County-level divisions of Jiangxi Fuzhou, Jiangxi {{Jiangxi-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parelasmotherium
''Parelasmotherium'' is an extinct genus of rhinoceroses that lived in Northern China about 11.1 million years ago in the Late Miocene. With its large body and its hypsodont grazing teeth, it belonged to the subfamily Elasmotheriinae and was a relative of the later ''Elasmotherium'', which was widespread over large parts of northern Asia in the Pleistocene. It was named in 1923 and was once considered to be a synonym of ''Sinotherium ''Sinotherium'' ("Chinese Beast") is a genus of single-horned elasmotheriine rhinoceros that lived from the late Miocene (Tortonian - Messinian) to Early Pliocene. It was ancestral to ''Elasmotherium,'' demonstrating a very important evolutionar ...''. Three species of this genus have been named, although analysis of their teeth in 2022 suggested that two of them (''P. simplum'' and ''P. linxiaense'') are not closely related to the remaining species and should be placed in a separate genus. History Hugo Killgus established the genus ''Parelasmot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Dimorphism
Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most animals and some plants. Differences may include secondary sex characteristics, size, weight, colour, markings, or behavioural or cognitive traits. These differences may be subtle or exaggerated and may be subjected to sexual selection and natural selection. The opposite of dimorphism is ''monomorphism'', which is when both biological sexes are phenotypically indistinguishable from each other. Overview Ornamentation and coloration Common and easily identified types of dimorphism consist of ornamentation and coloration, though not always apparent. A difference in coloration of sexes within a given species is called sexual dichromatism, which is commonly seen in many species of birds and reptiles. Sexual selection leads to the exaggerated dim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elasmotheriine
A rhinoceros (; ; ), commonly abbreviated to rhino, is a member of any of the five extant species (or numerous extinct species) of odd-toed ungulates in the family Rhinocerotidae. (It can also refer to a member of any of the extinct species of the superfamily Rhinocerotoidea.) Two of the extant species are native to Africa, and three to South and Southeast Asia. Rhinoceroses are some of the largest remaining megafauna: all weigh at least one tonne in adulthood. They have a herbivorous diet, small brains (400–600 g) for mammals of their size, one or two horns, and a thick (1.5–5 cm), protective skin formed from layers of collagen positioned in a lattice structure. They generally eat leafy material, although their ability to ferment food in their hindgut allows them to subsist on more fibrous plant matter when necessary. Unlike other perissodactyls, the two African species of rhinoceros lack teeth at the front of their mouths; they rely instead on their lips to plu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 steppes. Morphology ''Hipparion'' resembled the modern horse, but still had two vestigial outer toes (in addition to its hoof The hoof (plural: hooves) is the tip of a toe of an ungulate mammal, which is covered and strengthened with a thick and horny keratin covering. Artiodactyls are even-toed ungulates, species whose feet have an even number of digits, yet the rumin ...). In some species, these outer toes were functional. ''Hipparion'' was about tall at the shoulder. Species References {{Taxonbar, from=Q971275 Cenozoic mammals of Asia Cenozoic mammals of North America Miocene horses Pliocene horses Pleistocene horses Miocene genus first appearances Pleistocene genus extinctions Cenozoic mammals of Europe Cenozoic ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinoceros
A rhinoceros (; ; ), commonly abbreviated to rhino, is a member of any of the five extant species (or numerous extinct species) of odd-toed ungulates in the family Rhinocerotidae. (It can also refer to a member of any of the extinct species of the superfamily Rhinocerotoidea.) Two of the extant species are native to Africa, and three to South and Southeast Asia. Rhinoceroses are some of the largest remaining megafauna: all weigh at least one tonne in adulthood. They have a herbivorous diet, small brains (400–600 g) for mammals of their size, one or two horns, and a thick (1.5–5 cm), protective skin formed from layers of collagen positioned in a lattice structure. They generally eat leafy material, although their ability to ferment food in their hindgut allows them to subsist on more fibrous plant matter when necessary. Unlike other perissodactyls, the two African species of rhinoceros lack teeth at the front of their mouths; they rely instead on their lips to pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tusk
Tusks are elongated, continuously growing front teeth that protrude well beyond the mouth of certain mammal species. They are most commonly canine teeth, as with pigs and walruses, or, in the case of elephants, elongated incisors. Tusks share common features such as extra-oral position, growth pattern, composition and structure, and lack of contribution to ingestion. Tusks are thought to have adapted to the extra-oral environments, like dry or aquatic or arctic. In most tusked species both the males and the females have tusks although the males' are larger. Most mammals with tusks have a pair of them growing out from either side of the mouth. Tusks are generally curved and have a smooth, continuous surface. The male narwhal's straight single helical tusk, which usually grows out from the left of the mouth, is an exception to the typical features of tusks described above. Continuous growth of tusks is enabled by formative tissues in the apical openings of the roots of the teeth. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilotherium
''Chilotherium'' is an extinct genus of rhinoceros endemic to Eurasia during the Miocene through Pliocene living for 13.7—3.4 mya, existing for approximately .. Retrieved 19 May 2013. Description It was a large, robust animal reaching 1.5-1.8 m in height and a weight between 1 and 2.5 tons, depending on the species. Both sexes are hornless. The lower jaw has a widened symphysial part and large tusk-like second incisors separated by a broad diastema. The dental formula is . The limbs are very short and the body stout; the feet are tridactyl with diverging metapodials. Studying ''C. wimani'', found a significant sexual dimorphism in the tusks and mandible, most notably the length of the tusks in males. argued that some features in ''Chilotherium'', such as second incisors, mandible, cheek-teeth and other cranial features, are plesiomorphic, while some features in the tusks are apomorphic: the dorsal surface of the tusks in primitive species is turned latero-dorsally in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acerorhinus
''Acerorhinus'' was a genus of rhinoceros of the tribe Aceratheriini endemic to Asia from the Miocene, living from 13.6—7.0 mya existing for approximately . Among other locations, well-preserved ''Acerorhinus'' skull specimens have been found at Kerassiá in North Eubonea, Greece. Taxonomy ''Acerorhinus'' was named by Kretzoi (1942). Its type is ''Aceratherium zernowi''. Originally, many species in this genus including ''A. zernowi'' were assigned to '' Chilotherium''. It was assigned to Aceratheriini by Kaya and Heissig (2001); and to Aceratheriini by Antoine and Saraç (2005). Description ''Acerorhinus'' had very short legs, more like ''Teleoceras ''Teleoceras'' (Greek: "perfect" (teleos), "horn" (keratos)) is an extinct genus of grazing rhinoceros. It lived in North America during the Miocene and Pliocene epochs during the Hemingfordian to the end of Hemphillian from around 17.5 to 4. ...'' than other Aceratherines. While most other Aceratherines were grazers, ''Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
