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, MacFadden 1998, Marsh 1876, Matthew 1909 and Wortman 1896
Sister taxa: Sifrhippus grangeri, Sifrhippus sandrae, 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.