Paratoceras
Paratoceras is an extinct genus of Artiodactyla, of the family Protoceratidae, endemic to North America. They lived during the Early to Middle Miocene, 20.4—10.3 Ma, existing for approximately. Paratoceras resembled deer, but were probably more closely related to chevrotains. In addition to having horns on the top of the head, they had a third horn on the snout.