Equus holmesi Hay 1920 (horse)

Mammalia - Perissodactyla - Equidae

Full reference: O. P. Hay. 1920. Descriptions of some Pleistocene vertebrates found in the United States. Proceedings of The United States National Museum 58:83-146

Belongs to Equus according to O. P. Hay 1920

Sister taxa: Equus (Amerhippus), Equus (Asinus) cumminsi, Equus (Hemionus), Equus (Hesperohippus), Equus (Parastilidequus), Equus (Sussemionus), Equus africanus, Equus alaskae, Equus asinus, Equus australis, Equus caballus, Equus calobatus, Equus capensis, Equus cedralensis, Equus coliemensis, Equus complicatus, Equus conversidens, Equus eisenmannae, Equus excelsus, Equus francisci, Equus fraternus, Equus fromanius, Equus giganteus, Equus intermedius, Equus jubatus, Equus laurentius, Equus leidyi, Equus mexicanus, Equus nalaikhaensis, Equus nearcticus, Equus nevadanus, Equus niobrarensis, Equus nobisi, Equus parastylidens, Equus pectinatus, Equus przewalskii, Equus pseudaltidens, Equus quagga, Equus sanmeniensis, Equus santaeelenae, Equus semiplicatus, Equus sivalensis, Equus tabeti, Equus taeniopus, Equus yunnanensis, Equus zebra, Hippotherium princeps, Onager onager, Hippotigris grevyi, Hippotigris stenonis, Hippotigris robustus, Equus (Dolichohippus) grevyi, Equus (Dolichohippus) enormis, Asinus africanus, Equus (Asinus) kiang

Type specimen: USNM 8642, a set of teeth (Four upper teeth of the right side—namely, pre- molars 3 and 4, molars 1 and 2). Its type locality is Afton, which is in a Pleistocene terrestrial horizon in Oklahoma.

Ecology: ground dwelling grazer

Distribution: found only at Afton

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