Ant 25 11 - A nt 25 11 March 25, 2011 Early hominids and...

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Ant 25 11 March 25, 2011 Early hominids and Australopithecines 1. Ape and hominid splits- approximately 7 to 10 million years ago Environment 1. Lake, forest, river, and woodland savanna during the Upper Miocene 2. Early finds in forested environments 3. Bipedalism may have developed apart from migration to savannas 4. Late Miocene- earth warmer than today, temperature drives climate 5. Bipedalism evolves in forest and in Pliocene forest starts to die out as hominids start to begin living in grasslands. New hominids appear. 5-6 million years ago. Protohominids 1. Earliest members of the hominid lineage 7-5 million years ago Sahelanthropus tchadensis Orrorin tuganensis 2. Structure and behavior reconstructed hypothetically Sahelanthropus tchadensis 1. Oldest possible hominid species 2. 7-6 million years ago discovered in Chad, 2001 3. Partial cranium recovered
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Small brain (350 cc) Little proganthism - Face forward = more prognathic (apes) - Related to dentition- apes and humans same amount of teeth
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This note was uploaded on 09/04/2011 for the course ANT 2511 taught by Professor Sinelli during the Spring '08 term at University of Central Florida.

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Ant 25 11 - A nt 25 11 March 25, 2011 Early hominids and...

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