Claim: Bubalina (represented today by the genera Bison and Bos) and Bovina (represented today by the genera Syncerus and Bubalus) are both subtribes of Bovina, which have diverged from one and another from a common ancestor around 22 million years ago in the Early Miocene.
Evidence: Despite being sometimes referred to as buffaloes, bison are not members of the Bubalina, but are instead classified in the subtribe Bovina.