Mammalia - Perissodactyla - Equidae

Alternative combinations: Calippus ansae, Pliohippus ansae, Protohippus ansae

Belongs to Astrohippus according to B. J. MacFadden 1984

Sister taxon: Astrohippus stockii

Type specimen: Its type locality is Coffee Ranch, which is in a Hemphillian terrestrial horizon in Texas

Ecology: ground dwelling browser