Figure 1
Skull and dental characteristics. A, Hippidion with nasal notch posterior to M1. B, Equus (Amerhippus). C, comparative morphology of upper cheek teeth in occlusal view.
Figure 1 | BMC Ecology
Skull and dental characteristics. A, Hippidion with nasal notch posterior to M1. B, Equus (Amerhippus). C, comparative morphology of upper cheek teeth in occlusal view.