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Stockoceros

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Extinct genus of mammals

Stockoceros
Temporal range: 1.8–0.012 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
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), known from what is now Mexico and the southwestern United States. The genus survived until about 12,000 years ago, and was present when Paleo-Indians reached North America.

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.

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.

S. conklingi skull

References

  1. ^ "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.
Taxon identifiers
Stockoceros


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