Mammalia - Artiodactyla - Protoceratidae

Full reference: T. H. Patton and B. E. Taylor. 1973. Bulletin of the American Museum of Natural History 150(4)

Belongs to Protoceras according to T. H. Patton and B. E. Taylor 1973

Sister taxa: Protoceras celer, Protoceras neatodelpha

Type specimen: Its type locality is Harris Ranch Unit E Silt, which is in an Arikareean terrestrial horizon in South Dakota

Ecology: ground dwelling browser