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Chapter 4

ANTH 1220 Chapter 4: Topic 32

3 Pages

Course Code
ANTH 1220
Ellen R.Judd

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oS98 Aka nuclear age Primate Evolution Tethys sea ancestor of Mediterranean dries up 5 MYA (slat desert) Early Miocene apelike primates confined to Africa Middle Miocene (16MYA) primates widespread edges of Tethys Late (7 MYA) equatorial Africa and SE Asia (change in climate) Miocene Apes Oreopithecus Longer arms than legs No tail, quadrupedal, arboreal, knuckle walking, brachiation Pliopithecus Small, arboreal, quadruped, leafeating, no prehensile tail Sivapithecus Best known Miocene Hominoid Ancestor of Asian apes = orangutans Thought to be earliest ancestor of humans Teeth adapted to foods in drieropen habitats Similar to pandababoon, thick dental enamel on molars, low cusps on large premolars, flatter molars, small canines Sexual dimorphism broad incisors, deep mandible, zygomatic arches flaring in face (orthognathous = non projecting) Arboreal, quadruped, degree of climbing and suspension Gigantopithecus Largest primate ever ChinaVietnam Vegetarian 2.75 M tall, 272 kg Taphonomy = science of what is lost What we find isnt what was originally there Genetic differences 3 = humanorangutan 2 = humangorilla 1 = humanchimp
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