Eohippus angustidens Cope 1875

Mammalia - Perissodactyla - Equidae

Alternative combinations: Hyracotherium angustidens, Orohippus angustidens

Synonyms: Eohippus cuspidatus Cope 1875, Eohippus validus Marsh 1876, Hyracotherium cuspidatum Cope 1875, Hyracotherium seekinsi Morris 1968, Orohippus cuspidatus Cope 1875

Full reference: E. D. Cope. 1875. Systematic Catalogue of Vertebrata of the Eocene of New Mexico, Collected in 1874. Geographical Explorations and Surveys West of the 100th Meridian, Engineer Department, U. S. Army 5-37

Belongs to Eohippus according to D. J. Froehlich 2002

See also Alroy 2002, Cope 1875, Froehlich 1999, Gingerich 1989, Gingerich 1991, Granger 1908, Hay 1902, Lillegraven 1994, MacFadden 1998, Marsh 1876, Morris 1968, Stirton 1940 and Wortman 1896

Sister taxa: Eohippus borealis, Eohippus cristonensis, Eohippus resartus

Type specimens:

  • Eohippus angustidens: USNM 1079, a mandible (left mandible fragment with M1–M3)
  • Eohippus validus: YPM 11307.
  • Hyracotherium cuspidatum: USNM 1079, a mandible (left mandible fragment with M1–M3).
  • Hyracotherium seekinsi: Its type locality is Lomas las Tetas de Cabra, which is in a Wasatchian fluvial-lacustrine sandstone/siltstone in the Las Tetas de Cabra Formation of Mexico.

Distribution:

• Eocene of Mexico (1 collection), United States (4: Colorado, New Mexico)

Total: 5 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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