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Dilophodon
Tapiroidea is a superfamily of perissodactyls which includes the modern tapir. Members of the superfamily are small to large browsing mammals, roughly pig-like in shape, with short, prehensile snouts. Their closest relatives are the other odd-toed ungulates, including horses and rhinoceroses. Taxonomically, they are placed in suborder Ceratomorpha along with the rhino superfamily, Rhinocerotoidea. The first members of Tapiroidea appeared during the Early Eocene, 55 million years ago. Evolution and natural history The first tapirids, such as ''Heptodon'', appeared in the early Eocene. They appeared very similar to modern forms, but were about half the size, and lack the proboscis. The first true tapirs, appeared in the Oligocene, and by the Miocene, such genera as '' Miotapirus'' were almost indistinguishable to the extant species. It is believed that Asian and American tapirs diverged around 20 to 30 million years ago, and that tapirs migrated from North America and Centra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helaletidae
The Helaletidae is an extinct family of tapiroid Tapiroidea is a superfamily of perissodactyls which includes the modern tapir. Members of the superfamily are small to large browsing mammals, roughly pig-like in shape, with short, prehensile snouts. Their closest relatives are the other odd-toe ... closely related and likely ancestral to the true tapirs, which contain '' Protapirus'' and all descendants. In alternative classifications, the Helaletidae is treated as a subfamily within Tapiridae, the Helaletinae. Members of the family are defined by having less bilophodont cheek teeth compared to other tapiroids. References Prehistoric mammal families Odd-toed ungulates {{paleo-oddtoedungulate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeothere
Palaeotheriidae is an extinct family of herbivorous perissodactyl mammals related to equids. They ranged across Europe and Asia from the Eocene through to the early Oligocene 55–33 Ma, existing for approximately . Living in dense forests, they ate soft leaves, shoots, berries, and leaf matter picked up from the forest floor. Morphology Palaeothere sizes ranged from at the shoulder, and weighed an estimated .S. Legendre. 1988. Les communautes de mammiferes du Paleogene (Eocene superieur et Oligocene) d'Europe occidentale: structure, milieux et evolution. Ph.D. thesis, Universite des Sciences et Techniques du Languedoc, Montpellier, France. 2 volumes. 1-265 Extinction Evidence suggests that the palaeotheriidae went extinct in Eurasia during the Early Oligocene, approximately 33 Ma, as part of a faunal turnover event known as the Grande Coupure. The Eocene-Oligocene transition marked a significant global cooling event caused by the onset of Antarctic gla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapirus
''Tapirus'' is a genus of tapir which contains the three living American tapir species. The Malayan tapir is usually included in ''Tapirus'' as well, although some authorities have moved it into its own genus, '' Acrocodia''. Extant species The Kabomani tapir was at one point recognized as another living member of the genus, but is now considered to be nested within ''T. terrestris''. Evolution ''Tapirus'' first appeared in the Late Miocene in North America, with ''Tapirus webbi'' perhaps the oldest known fossil species. ''Tapirus'' spread into South America and Eurasia during the Pliocene. It has been suggested that the tapirs that inhabited North America during the Late Pleistocene may be derived from a South American species that remigrated north, perhaps ''Tapirus cristatellus''. Tapirs suffered large-scale extinctions at the end of the Pleistocene, and went completely extinct north of southern Mexico. Fossil species *†'' Tapirus arvernensis'' Croizet & Jobert, 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapiravus
''Tapiravus'' is an extinct genus of herbivorous mammals that were related to tapir Tapirs ( ) are large, herbivorous mammals belonging to the family Tapiridae. They are similar in shape to a pig, with a short, prehensile nose trunk. Tapirs inhabit jungle and forest regions of South and Central America, with one species inh ...s of today. References Prehistoric tapirs Prehistoric mammal genera {{paleo-oddtoedungulate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protapirus
''Protapirus'' (Latin: "before" (pro), + Brazilian Indian: "tapir" (tapira)) is an extinct genus of tapir known from the Oligocene and Miocene of North America and Eurasia. Taxonomy The type species is ''Protapirus priscus'' from the Late Oligocene of Quercy, France. ''Protapirus'' is often considered the earliest true tapir, or at least a tapiroid who is the direct ancestor of the true tapir family (but not modern tapirs). Distribution and history The oldest species is the North American ''P. simplex'' from the White River Formation. A later North American species is ''P. obliquidens'' From North America, the genus spread into Eurasia during the Oligocene, with five species known from the Oligocene and Miocene of Europe and a single species (''P. gromovae'') from Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia Russia (, , ), or the Rus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plesiotapirus
''Plesiotapirus'' is an extinct genus of tapir from the Miocene of Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an .... A single species is usually considered valid, ''Plesiotapirus yagii''. It was first described in 1921 based on fragmentary dental remains found in Japan. Fossils of ''P. yagii'' were originally classified under the defunct genus ''Palaeotapirus''. Better material, including a complete skull, were found in China and in 1991 the genus ''Plesiotapirus'' was erected. References Prehistoric tapirs Miocene odd-toed ungulates Miocene mammals of Asia {{Paleo-oddtoedungulate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paratapirus
''Paratapirus'' is an extinct genus of tapir known from the Late Oligocene and Early Miocene of Europe. Taxonomy Two species are considered valid: *''P. helveticus'' *''P. intermedius'' The species ''P. moguntiacus'' and ''P. robustus'' are considered synonyms of ''P. intermedius''. Members of this genus were originally described under the name ''Palaeotapirus'' along with several other tapir genera, but that name is now considered abandoned since it was described from poor diagnostic material. Description ''Paratapirus'' was among the earliest known tapirs, and probably evolved from '' Protapirus'' which had migrated into Eurasia Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelag ... from North America near the end of the Oligocene. In comparison to ''Protapirus'' it had more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nexuotapirus
''Nexuotapirus'' is an extinct genus of tapir from the Late Oligocene and Early Miocene of North America. Taxonomy ''Nexuotapirus'' was erected in 1998. The type species, ''N. marslandensis'', was originally classified under '' Miotapirus''. The second species, ''N. robustus'', was originally placed in '' Protapirus'' but was also moved to ''Nexuotapirus'' based on comparable lower dentition. Description ''Nexuotapirus'' shows both plesiomorphic and derived features compared to other early tapirs, making its exact relationship with them difficult to place. Primitive traits of the genus include less molar-like premolars and incisive foramina that extend posteriorly through the postcanine diastema, as well as a braincase that tapers towards the back. More advanced features include deep retraction of the nasal incision, nasal shortening, frontal shortening, and reduction of the supraorbital process, features comparable to the modern ''Tapirus ''Tapirus'' is a g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapiridae
Tapirs ( ) are large, herbivorous mammals belonging to the family Tapiridae. They are similar in shape to a pig, with a short, prehensile nose trunk. Tapirs inhabit jungle and forest regions of South and Central America, with one species inhabiting Southeast Asia. They are one of three extant branches of Perissodactyla (odd-toed ungulates), alongside equines and rhinoceros. Only a single genus, '' Tapirus'' is currently extant. Tapirs migrated into South America during the Pleistocene epoch from North America after the formation of the Isthmus of Panama as part of the Great American Interchange. Tapirs were once widespread in North America until the arrival of humans at the end of the Late Pleistocene, around 12,000 years ago. Species There are four widely recognized extant species of tapir, all in the genus ''Tapirus'' of the family Tapiridae. They are the South American tapir, the Malayan tapir, Baird's tapir, and the mountain tapir. In 2013, a group of researchers said the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleolophus
''Teleolophus'' is an extinct genus of herbivorous mammals related to tapirs that flourished in the Eocene of Asia. References Eocene odd-toed ungulates Eocene mammals of Asia Fossil taxa described in 1925 {{paleo-oddtoedungulate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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