Despite the fact that camels are popularly associated with the deserts of Asia and Africa, the family Camelidae, which comprises camels and llamas, originated in North America during the middle Eocene period, at least 44 million years ago.[5] Both the camel and horse families originated in the Americas and migrated into Eurasia via the Bering Strait.[6] Modern camels are descended from the extinct genus Paracamelus, which probably crossed the Bering land bridge into Asia between 7.5 and 6.5 Ma. The divergence between Paracamelus and Camelops occurred about 11–10 Ma. Paracamelus would continue to live in North America as the High Arctic camel until the middle Pleistocene.
https://en.wikipedia.org/wiki/Camelops