Prehistoric horses

Palaeotheriidae is an extinct family of herbivorous perissodactyl mammals that inhabited Europe, with less abundant remains also known from Asia, from the mid-Eocene to the early Oligocene. They are classified in Equoidea, along with the living family Equidae (which includes zebras, horses and asses).

Eurohippus is an extinct genus of equoid ungulate. Its species were long considered part of Propalaeotherium and Lophiotherium. A pregnant specimen was described in 2015.

Anchitheriinae is an extinct subfamily of the horse family Equidae. The group is suggested to be paraphyletic as a whole, representing various early offshoots of the lineage leading to Equinae (which contains modern zebras, horses and asses), though the tribe Anchitheriini (Anchitheriinae sensu stricto,” or “anchitherines”) represents a monophyletic group. The group first appeared in North America during the late Eocene, around 40 million years ago, subsequently radiating and reaching a peak of diversity by the end of the Eocene, around 34 million years ago, underdoing a slight decline during

paleolithic animal remains