ANT100Y1 Lecture : BIO LECTURE 4
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ANT100Y1 Full Course Notes
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Anthropology lecture 4 - early primate and human. What a hominim is in terms of taxonomy. Morphological trends in hominim evolution : bipedalism, brain size, changes in dental/cranial features. Eocene - 55. 8-33. 9 mya y hottest, wettest, most humid y giant forests y consistent drop of temperature y 2 primate families : adapidae. Larger body size 7 kg y y diurnal and nocturnal y arboreal quadrupeds y y: omomyidae y 2500 g y diurnal and nocturnal y y y. Fruit insects and leaves ( no animal can digest leaves) Steep decrease and increase in temperature y modern continents y y higher humidity y y primates - 3 haplorhine features : fused frontal bone, full postorbital closure. Forests expanding: fused mandibular sympahasis y 3 taxonomic groups , parapthecidae, propliopithecidae, platyrhini y y y origins of s. a. primate unclear y maybe rafted over from africa to s. a. Miocene (early) - 23- 5. 5 mya y modern day looking apes.
