erectussapiens260 - Lynch Alfaro Fall 2004 Anthro 260 Homo...

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Lynch Alfaro, Fall 2004 Anthro 260 Homo erectus , archaic Homo sapiens, and anatomically modern Homo sapiens Homo erectus: distribution First fossils found in Java, by Eugene Dubois Important fossils also found in China, at Zhoukoudian East, South and North Africa Europe, Middle East Homo erectus : cranial features Browridges Post-orbital constriction Receding forehead Flattened skull compared to modern humans No chin Homo erectus : cranial features Less prognathic than Australopithecines Larger brain (mean 1000 cc--increases over time Smaller teeth than Australopithecines (tearing and biting with incisors--less heavy chewing) Projecting nose like modern humans H. erectus : postcranial features WT 15000 Nariokotome Boy, found by Kimoya Kimeu Excellent post-cranial preservation 12 year old boy; would reach 6 ft as adult Long legs, narrow hips and shoulders Heavily muscled Pelvis same as modern humans Reduced sexual dimorphism Smaller openings in spinal cord H. erectus: tool use and diet Acheulean tools ( bifaced hand axes ) Used for butchery May also have been used for digging, throwing, stripping bark, and as flake dispensers From 1.4 mya to 400,000 ya tool kit remained the same
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Also used Olduwan tools , especially in Asia (choppers and flakes) Homo erectus :
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