Claim: Oromerycidae was a small extinct hoofed mammal, related to living camels from the superfamily Cameloidea, order Artiodactyla of the kingdom Animalia that lived during the middle to late Eocene of western North America.
Evidence: Oromerycidae is a small (both in size and diversity), extinct family of artiodactyls (even-toed hoofed mammals) closely related to living camels, known from the middle to late Eocene of western North America. Superfamily: Cameloidea Order: Artiodactyla Kingdom: Animalia