†subfamily Protohippinae Gidley 1907 (horse)
Mammalia - Perissodactyla - Equidae
Full reference: J. W. Gidley. 1907. Revision of the Miocene and Pliocene Equidae of North America. Bulletin of the American Museum of Natural History 23(35):865-934
Parent taxon: Equidae according to J. W. Gidley 1907
Sister taxa: Anchitheriinae, Duchesnehippus, Eohippus, Epihippus, Equinae, Erihippus, Gobihippus, Hipphaplus, Hyperhippidium, Hypohippidium, Hyracotheriinae, Lophiopus, Minippus, Orohippus, Plesiohipparion, Pliolophus, Protorohippus, Sifrhippus, Sivalhippus, Xenicohippus
Subtaxa: none
Ecology: ground dwelling browser
Distribution: there are no occurrences of Protohippinae in the database