Stockoceros

Stockoceros
Temporal range: 1.8–0.012 Ma[1]
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S. conklingi skeleton
Life restoration
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Antilocapridae
Tribe: †Stockoceratini
Genus: †Stockoceros
Skinner, 1942
Species

Stockoceros is an extinct genus of the North American artiodactyl family Antilocapridae (pronghorns),[2] known from what is now Mexico and the southwestern United States.[1] The genus survived until about 12,000 years ago, and was present when Paleo-Indians reached North America.[3][4]

Description

Its horns are each divided near their base into two prongs of roughly equal length. Dental microwear studies suggest that S. onusrosagris was a mixed feeder (both grazing and browsing) with a greater intake of grass into its diet than living pronghorn.[5]

One of the co-discoverers and co-describers of S. onusrosagris was Quentin Roosevelt II, grandson of Theodore Roosevelt; he was 14 at the time of the discovery.[6][7]

S. conklingi skull

References

  1. ^ a b "Stockoceros Skinner 1942". Paleobiology Database. Retrieved 17 December 2021.
  2. ^ Rivals, F.; Semprebon, G. M. (2006). "A comparison of the dietary habits of a large sample of the Pleistocene pronghorn Stockoceros onusrosagris from the Papago Springs Cave in Arizona to the modern Antilocapra americana". Journal of Vertebrate Paleontology. 26 (2): 495. doi:10.1671/0272-4634(2006)26[495:ACOTDH]2.0.CO;2. S2CID 86134472.
  3. ^ "Stockoceros conklingi Stock 1930". Paleobiology Database. Retrieved 17 December 2021.
  4. ^ "Stockoceros onusrosagris Roosevelt and Burden 1934". Paleobiology Database. Retrieved 17 December 2021.
  5. ^ Rivals, Florent; Semprebon, Gina M. (2006-06-12). "A comparison of the dietary habits of a large sample of the Pleistocene pronghorn Stockoceros onusrosagris from the Papago Springs Cave in Arizona to the modern Antilocapra americana". Journal of Vertebrate Paleontology. 26 (2): 495–500. doi:10.1671/0272-4634(2006)26[495:ACOTDH]2.0.CO;2. ISSN 0272-4634. S2CID 86134472.
  6. ^ Roosevelt, Q.; Burden, J. W. (1934). "A new species of antilocaprine, Tetrameryx onusrosagris, from a Pleistocene cave deposit in southern Arizona". American Museum Novitates (754). AMNH: 1–4. hdl:2246/2114. Retrieved 2015-11-21.
  7. ^ "Burden's Pronghorn: an Arizona Story". Prehistoric Pronghorn. International Wildlife Museum. Archived from the original on 2015-11-22. Retrieved 2015-11-21.


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