Work in a small group or alone to complete this exercise. Theropithecus lived in Africa at the end of the Pliocene and the early Pleistocene. It had two premolars in each mouth quadrant and bilophodont molars. Its teeth indicate an unusual diet that emphasized grasses. It had larger canines and a much larger body size than its living primate relatives. Its postcranial traits suggest it was a well-adapted terrestrial quadruped.
1. Based on this information, do you think this fossil has more in common with living colobines or cercopithecines?
2. Describe one trait you used to make this identification.