14-29 - A nthropology lecture notes 31.3.09 Early Primates...

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Anthropology lecture notes 31.3.09 Early Primates Teilhardina China 55mya Small prosimian like primate Stereoscopic vision Primitive teeth Plesiadapis Early primate-like mammal Notharctus Lemur-like early Prosimian Wyoming 50 mya Derived traits: o Grasping hands and feet o Stereoscopic vision o Larger brain Primitive traits o 4 premolars o Long tail o Not upright posture Early prosmians
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Eosimias o Possible early Anthropoid o China o 45 mya o Only foot bones found Oligocene o End of Eocene primates in N.America became extinct o Climate changes and becomes colder o Anthropoids expand, prosimians reduced and die out Fossil world anthropoids (Catarrhini) o Quadrupeds o Diurnal o Features characteristics of both monkeys and apes o Fayum fossil site Located in Egypt 37-31 mya Contains many species of anthropoids Mostly small arboreal quadrupeds Variable dental pattersn New world monkeys (Platyrrhini) o Migrate to south America from Africa some time during Oligocene
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This note was uploaded on 04/18/2011 for the course ANTH 105 taught by Professor Tankosic during the Winter '09 term at Indiana.

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14-29 - A nthropology lecture notes 31.3.09 Early Primates...

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