| Gorgopithecus | |
|---|---|
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Haplorhini |
| Infraorder: | Simiiformes |
| Family: | Cercopithecidae |
| Tribe: | Papionini |
| Genus: | †Gorgopithecus Broom & Robinson, 1949 |
| Species: | †G. major |
| Binomial name | |
| †Gorgopithecus major Broom, 1940 | |
Gorgopithecus is an extinctgenus ofprimate in theOld World monkey familyCercopithecidae, closely related to thebaboons.[2][3]There is only one known species,Gorgopithecus major. It has been found at sites from thePliocene and EarlyPleistocene Epoch in South Africa and Tanzania.[4] It was first discovered at theKromdraai A (also called the Kromdraai "Faunal") site in South Africa.[2] It has since been found fromSwartkrans (member 1), South Africa.[5] Most recently, it has been recognized from the DKI site in Bed I ofOlduvai Gorge, Tanzania, which has been dated to 1.8 million years old.[4]
Gorgopithecus major was somewhat larger in body size than the largest extant baboons, with males estimated to have weighed approximately 37 kg on average, based on dental size.[6] Like most other papionin (baboons and their close relatives) monkeys, it had a large degree of sexual dimorphism where males are much larger than females and have large, fang-like,canine teeth.[6] Like other baboons, it has a long snout, but is distinguished from other papionin monkeys by the presence of deeply excavated fossae on the sides of its snout (postcanine fossae), absence of maxillary ridges (crests of bone along the length of the snout), and shortnasal bones.[7]
The diet ofGorgopithecus 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 themolar teeth suggest it ate mostly fruits and other easily digested plant parts.[9] Microwear analysis of teeth fromKromdraai, South Africa was consistent with leaf eating, but samples were too small for statistical analysis.[10] To date, no limb bones or other elements of thepostcranial skeleton have been attributed toG. major so its manner of locomotion and whether it preferred life in the trees or on the ground is unknown.
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