†subtribe Protohippina Quinn 1955 (protohippines)
Mammalia - Perissodactyla - Equidae
Full reference: J. H. Quinn. 1955. Miocene Equidae of the Texas Gulf Coastal Plain. Bureau of Economic Geology, The University of Texas Report of Investigations 5516:1-102
Parent taxon: Equini according to J. L. Prado and M. T. Alberdi 1996
Sister taxa: Allohippus, Boreohippidion, Calippus, Dinohippus, Equus, Equus proversus, Heteropliohippus, Hippidion, Parapliohippus, Plesippus, Pliohippina, Pliohippus, Protohippus
Subtaxa: none
Ecology: ground dwelling grazer-browser
Distribution: there are no occurrences of Protohippina in the database