Mammalia - Perissodactyla - Equidae
Alternative combinations: Eohippus pernix, Hyracotherium pernix
Full reference: O. C. Marsh. 1876. Notice of new Tertiary mammals. V. American Journal of Science 12(71):401-404
Belongs to Arenahippus according to D. J. Froehlich 2002
See also Gingerich 1991, Granger 1908, Hay 1902, Kitts 1956, MacFadden 1998, Marsh 1876, Matthew 1909 and Wortman 1896
Sister taxa: Sifrhippus grangeri, Sifrhippus index, Arenahippus aemulor
Type specimen: YPM 11304 (lectotype), a set of limb elements (left astragalus and associated distal tibia). Its type locality is Bitter Creek, which is in a Wasatchian terrestrial horizon in the Wasatch Formation of Wyoming.
Ecology: ground dwelling browser
Distribution:
• Eocene of United States (112: Wyoming collections)
Total: 112 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.