ANTH 225 Lecture Notes - Lecture 5: Catopithecus, Grooming Claw, Catarrhini
15 Mar 2016
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Reflect origin of anthropoids: algeria, 45 mya, need more fossils. Catopithecus browni: does not include tarsiers, only monkeys, apes, humans. Tarsier like traits: larger orbits, smaller snout, similar dental formula, beginning of post orbital closure. Linked to modern tarsiers: dental formula, larger brain, shorter faces, unique anatomy of foot. Evolved in asia, spread east to west to. 60 mya: egypt, 37 mya, end of eocene, once a subtropical environment, anthropoid characteristics. Large orbits (at least one species was nocturnal) Dental features link it to primitive anthropoids. Most abundant evidence in africa, but it is and anthropoids: nothing unique to anthropoids. Oldest tarsiers do not have anthropoid like characteristics younger. Towards the end of the eocene: less wet/tropical and more dry and seasonal. New adaptive niches because of more diverse landscapes: anthropoidea emerges. What we look for in fossil record: unique to anthropoids from prosimiians, fused frontal, post orbital closure, tooth comb, grooming claw, china, originated in asia, dispersed to.
