epoch from 12 to 7 Ma.

Five species are currently recognized within the genus: B. fricki, B. loveorum, B. morrisi, B. oregonensis, and B. piveteaui. B. morrisi likely evolved from Albanosmilus migrating into North America. With B. piveteaui evolving from reverse migration from North America into Eurasia. B. loveorum possibly evolved from B. morrisi, and may have evolved into B. fricki.

B. morrisi and B. piveteaui were the smallest

1.Previous
3.Next