Mammalia - Perissodactyla

Alternative combination: Hyracotherium aemulor

Full reference: P. D. Gingerich. 1991. Contributions from the Museum of Paleontology, University of Michigan 28(8)

Belongs to Arenahippus according to D. J. Froelich 2002

Sister taxa: Sifrhippus grangeri, Sifrhippus sandrae

Type specimen: Its type locality is SC-34, which is in a Wasatchian terrestrial horizon in the Willwood Formation of Wyoming

Average measurements (in mm): m1 8.10 x 5.60