Gorgopithecus
Gorgopithecus is an extinct genus of primate in the Old World monkey family Cercopithecidae, closely related to the baboons.[5] Most recently, it has been recognized from the DKI site in Bed I of Olduvai Gorge, Tanzania, which has been dated to 1.8 million years old.[7] The diet of Gorgopithecus was probably similar in many ways to that of living baboons and macaques, which are mostly opportunistic feeders with an omnivorous diet dominated by fruit, roots, tubers, grass seeds, gums, soft leaves, but also occasional insects and other animal foods.[8] The morphology of the molar teeth suggest it ate mostly fruits and other easily digested plant parts.[10] To date, no limb bones or other elements of the postcranial skeleton have been attributed to G. major so its manner of locomotion and whether it preferred life in the trees or on the ground is unknown.