The newly-identified species — the earliest and most primitive member of the saber-toothed cat genus Amphimachairodus — had craniodental adaptations to social behavior and open environment. An artist’s reconstruction of two Amphimachairodus hezhengensis defending their prey (Hezhengia bohlini) from two Dinocrocuta gigantea. Image credit: Oscar Sanisidro. Amphimachairodus hezhengensis lived in what is now northern China during the Turolian...
