Camelops Tooth cast. Camelops first appeared during the late Pliocene (2.9 MYA) and went extinct at the end of the Pleistocene (11,700 BCE). Camelops roamed Western North America. Like horses, Camels and lamas originated in North America and migrated into Asia, Europe and Africa. The camels and horses went extinct in the Americas. But the Asian, European, and African variations continued to evolve. This tooth was cast from a 20,000 year old specimen. Length: 7 cm.