Osbornoceros
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| Osbornoceros Fossil range: Late Miocene |
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 Osbornoceros osborni
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| †Osbornoceros osborni Frick, 1937 |
Osbornoceros was a prehistoric antilocaprid genus belonging to the family Antilocapridae, of which all its species are extinct except for the pronghorn. Osbornoceros osborni is the only known species of the Osbornoceros genus. Osbornoceros lived during the Late Miocene around 7-6 million years ago in what is currently North America. It is well represented in fossil discoveries, with nearly a dozen specimens having been found to date. All come from the Chamita Formation in a quarry near Lyden, New Mexico, the site of numerous other finds such as that of Chamitataxus, a prehistoric badger who lived at the same time. The holotype specimen of Osbornoceros was discovered in 1937 and many more were found nearby during further expeditions.
Osbornoceros was strikingly similar to today's pronghorn; it was lightly built and had a series of small horns that protruded from its skull. It was, like its relatives, a quadruped herbivore and grazed on the grassy plains of its time. It is not known if Osbornoceros had any predators and much is still unknown about its paleobiology, but it is assumed that it was similar to the present day pronghorn and its extinct relatives. Osbornoceros was covered in a short fur and was most likely a good runner.
[edit] References
- Frick, C. (1937). Horned ruminants of North America. Bulletin of the American Museum of Natural History 69: 1–669.
