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Arctodus is an extinct genus of short-faced bear that inhabited North America during the Pleistocene (~2.5 Mya until 12,800 years ago). There are two recognized species: the lesser short-faced bear (Arctodus pristinus) and the giant short-faced bear (Arctodus simus).
The Tremarctinae or short-faced bears is a subfamily of Ursidae that contains one living representative, the spectacled bear (Tremarctos ornatus) of South America, and several extinct species from four genera: the Florida spectacled bear (Tremarctos floridanus), the North American giant short-faced bears Arctodus (A. pristinus and A. simus), the South American giant short-faced bear ...
Arctotherium ("bear beast") is an extinct genus of the Pleistocene short-faced bears endemic to Central and South America. [1] Arctotherium migrated from North America to South America during the Great American Interchange, following the formation of the Isthmus of Panama during the late Pliocene.
The northern species, the Florida short-faced bear, became extinct 11,000 years ago. [1] The sole living Tremarctos species is the South American spectacled bear . Tremarctos is also the only living genus under the Tremarctinae subfamily, with the other genera, Plionarctos , Arctodus , and Arctotherium all being extinct.
Castoroides (Latin: "beaver" (castor), "like" (oides) [2]), or the giant beaver, is an extinct genus of enormous, bear-sized beavers that lived in North America during the Pleistocene. Two species are currently recognized, C. dilophidus in the Southeastern United States and C. ohioensis in most of North America.
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Tremarctos floridanus is an extinct species of bear in the family Ursidae, subfamily Tremarctinae. T. floridanus became extinct at the end of the last ice age , 11,000 years ago. Its fossils have been found throughout the Southeastern United States , in northeastern Mexico , and in Belize from the Rancholabrean epoch (250,000–11,000 years ago ...
Although present at the tar pits, material assigned to the modern elk has not been dated. This leaves it ambiguous whether or not it coexisted with some of the well known La Brea animals such as the short-faced bear and American lion. † Shrub-ox [11] † Euceratherium cf. collinum: An extinct relative of the modern muskox. Findings from ...