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Cymbalophus
Tapiroidea is a superfamily of perissodactyls which includes the modern tapirs and their extinct relatives. 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, and were present in North America and Asia during the Eocene. Tapiridae first appeared during the early Oligocene in Europe, and are thought to have originated from the tapiroid family Helaletidae. Taxonomy *Superfamily Tapiroidea **Family †Deperetellidae ***Genus †''Bahinolophus'' ***Genus †''Deperetella'' ***Genus †''Irenolophus'' ***Genus †''Teleolophus'' **Family Tapiridae ***Genus †'' Eotapirus'' ***Genus †''Miotapirus'' ***Genus †''Nexuotapirus'' ***Genus †''Paratapirus'' ***Genus †'' Plesiotapirus'' ***Genus †''Protapirus'' (syn. ''Tanyops'') ***Genus †''Tapiravus'' ***Genus ''Tapirus'' **Family †Helaletidae ***Genus †''Colodon'' ***Genus †''Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes from the Ancient Greek (''Ēṓs'', 'Eos, Dawn') and (''kainós'', "new") and refers to the "dawn" of modern ('new') fauna that appeared during the epoch.See: *Letter from William Whewell to Charles Lyell dated 31 January 1831 in: * From p. 55: "The period next antecedent we shall call Eocene, from ήως, aurora, and χαινος, recens, because the extremely small proportion of living species contained in these strata, indicates what may be considered the first commencement, or ''dawn'', of the existing state of the animate creation." The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isoto ... [...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 from North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ... near the end of the Oligocene. In comparison to '' Protapirus'' it had more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indolophus
Indolophus is an extinct genus of perissodactyl belonging to the clade Tapiromorpha, which includes modern-day tapirs. Fossils have been found in the Early Eocene of Myanmar. Description ''Indolophus'' can be distinguished from other tapiromorphs in the characteristics of the upper dentition Dentition pertains to the development of teeth and their arrangement in the mouth. In particular, it is the characteristic arrangement, kind, and number of teeth in a given species at a given age. That is, the number, type, and morpho-physiology ...; it is distinguished from other basal tapiromorphs in having a more developed molar and protolophid and hypolophid. ''Indolophus'' is more primitive than tapiroids due to the lophodont dentiton and the absence of lingual and buccal cingula and molar metaconule.Tsubamoto, T., Soe Thura Tun, Egi, N., Takai, M., Shigehara, N., Aung Naing Soe, Aye Ko Aung, and Tin Thein. 2003. Reevaluation of some ungulate mammals from the Eocene Pondaung Formation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plesiocolopirus
Tapiroidea is a superfamily of perissodactyls which includes the modern tapirs and their extinct relatives. 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, and were present in North America and Asia during the Eocene. Tapiridae first appeared during the early Oligocene in Europe, and are thought to have originated from the tapiroid family Helaletidae. Taxonomy *Superfamily Tapiroidea **Family †Deperetellidae ***Genus †'' Bahinolophus'' ***Genus †'' Deperetella'' ***Genus †''Irenolophus'' ***Genus †'' Teleolophus'' **Family Tapiridae ***Genus †'' Eotapirus'' ***Genus †'' Miotapirus'' ***Genus †'' Nexuotapirus'' ***Genus †'' Paratapirus'' ***Genus †'' Plesiotapirus'' ***Genus †'' Protapirus'' (syn. ''Tanyops'') ***Genus †'' Tapiravus'' ***Genus ''Tapirus'' **Family †Helaletidae ***Genus †'' Colodon'' *** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paracolodon
''Paracolodon'' is an extinct genus of tapiroid perissodactyl belonging to the family Helaletidae. Fossils have been found in Mongolia and the Inner Mongolia Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an Autonomous regions of China, autonomous region of China. Its border includes two-thirds of the length of China's China–Mongolia border, border with the country of Mongolia. ... region of China. Taxonomy Matthew and Granger (1925) described the nominal tapiroid taxa ''Colodon inceptus'' and ''Paracolodon curtus'' from Eocene-age deposits in East Asia. Radinsky (1965) recognized two nominal species as identical and synonymized ''Paracolodon'' with ''Colodon inceptus''. Dashzeveg and Hooker (1997) assigned the nominal tapiroid species ''"Helalestes" fissus'' to ''Colodon'', as ''C. fissus'', based on similarities with ''inceptus''. On the basis of new material from the Erlian Basin in Inner Mongolia, Bai et al. (2017) recognized ''Paracolodon'' as a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heteraletes
Tapiroidea is a superfamily of perissodactyls which includes the modern tapirs and their extinct relatives. 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, and were present in North America and Asia during the Eocene. Tapiridae first appeared during the early Oligocene The Oligocene ( ) is a geologic epoch (geology), epoch of the Paleogene Geologic time scale, Period that extends from about 33.9 million to 23 million years before the present ( to ). As with other older geologic periods, the rock beds that defin ... in Europe, and are thought to have originated from the tapiroid family Helaletidae. Taxonomy *Superfamily Tapiroidea **Family †Deperetellidae ***Genus †'' Bahinolophus'' ***Genus †'' Deperetella'' ***Genus †''Irenolophus'' ***Genus †'' Teleolophus'' **Family Tapiridae ***Genus †'' Eotapirus'' ***Genu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heptodon
''Heptodon'' is an extinct genus of tapir-type herbivore of the family Helaletidae endemic to North America during the Early Eocene. It lived from 50.3—48.6 mya, existing for approximately . ''Heptodon'' was about in length, and closely resembled modern tapirs. The shape of the skull suggests that it probably lacked the characteristic tapir trunk. Instead it probably had a slightly elongated, fleshy upper lip, like its relative ''Helaletes''. See also *Fossil Butte National Monument Fossil Butte National Monument is a United States National Monument managed by the National Park Service, located west of Kemmerer, Wyoming, United States. It centers on an assemblage of Eocene Epoch (56 to 34 million years ago) animal and p ... References {{Taxonbar, from=Q2669763 Helaletidae Eocene Perissodactyla Eocene mammals of North America Taxa named by Edward Drinker Cope Fossil taxa described in 1882 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helaletes
''Helaletes'' is a genus of an extinct perissodactyls closely related to tapirs. Fossils have been found in North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri .... Taxonomy The type species of ''Helaletes'', ''H. nanus'', is known from Bridgerian-age fossils in the western US. ''Desmatotherium mongoliensis'' was previously referred to ''Helaletes'', but Bai et al. (2017) found it distantly related to the ''H. nanus'' type species, while excluding the nominal species ''H. medius'' Qiu, 1987 from Helaletidae.Bai B, Wang Y Q, Mao F Y et al., 2017. New material of Eocene Helaletidae (Perissodactyla, Tapiroidea) from the Irdin Manha Formation of the Erlian Basin, Inner Mongolia, China and comments on related localities of the Huheboerhe Area. Am Mus Novit, 3878: 1–44. Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dilophodon
Tapiroidea is a superfamily of perissodactyls which includes the modern tapirs and their extinct relatives. 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, and were present in North America and Asia during the Eocene. Tapiridae first appeared during the early Oligocene in Europe, and are thought to have originated from the tapiroid family Helaletidae. Taxonomy *Superfamily Tapiroidea **Family †Deperetellidae ***Genus †'' Bahinolophus'' ***Genus †'' Deperetella'' ***Genus †''Irenolophus'' ***Genus †''Teleolophus'' **Family Tapiridae ***Genus †'' Eotapirus'' ***Genus †''Miotapirus'' ***Genus †''Nexuotapirus'' ***Genus †'' Paratapirus'' ***Genus †'' Plesiotapirus'' ***Genus †''Protapirus'' (syn. ''Tanyops'') ***Genus †''Tapiravus'' ***Genus ''Tapirus'' **Family †Helaletidae ***Genus †'' Colodon'' ***Genus â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colodon
''Colodon'' is an extinct genus of herbivorous mammals that were related to tapirs of today.L. T. Holbrook. 1999. The Phylogeny and classification of tapiromorph perissodactyls (Mammalia). Cladistics 15(3):331-350 Taxonomy Species of ''Colodon'' were originally placed within the genus ''Lophiodon'' but were later found to be distinct. Description ''Colodon'' had small or absent canines and short, broad cheek teeth. The skull had a greatly enlarged narial incision and greatly reduced nasals. Similarities between the skulls of ''Colodon'' and true tapirs suggest it may have had a very small trunk as well. ''Colodon'' first appeared in the Late Eocene and lasted until the Whitneyan The Whitneyan 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 33,300,000 to 30,800,000 years BP, a period of . It is usuall .... References Helaletidae Prehistoric tapirs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapirus (Megatapirus) Augustus Skull Compared To A Protapirus Simplex Skull (cropped)
''Tapirus'' is a genus of tapir which contains the living 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 The genus ''Tapirus'' first appeared during the Middle Miocene (around 16-10 million years ago), known fossils in both Europe (''T. telleri'') and North America (''T. johnsoni'' and ''T. polkensis''). The youngest tapir in Europe, ''Tapirus arvernensis'' became extinct at the end of the Pliocene, around 2.6 million years ago. ''Tapirus'' dispersed into South America during the Early Pleistocene as part of the Great American Interchange, around 2.6-1 million years ago. Tapirs suffered considerable extinctions at the end of the Pleistocene, and went completely extinct north of southern Mexico. Fossil sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
