ANT100Y1 Lecture Notes - Lecture 6: Evolutionary Anthropology, Nuclear Dna, Denisova Cave
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From sites in tanzania, kenya, and ethiopia (2. 3-1. 6 mya) Species designation: brain size and association with stone tools. May represent 2 or more different species (h. rudolfensis and h. habilis) First fossil member of taxon: homo habilis, which means handy man . First early human not based on taxonomy but because unearthed with stone tools (problem because many animals use stone tools) Some researchers suggest that h. habilis is junk taxon and that there may be two or more species of homo by 2. 0 mya. First species in genus homo found outside africa (asia and southeast asia) Brain and body size changes in lineage. Increase in cranial capacity and body size. Proportionally not that different from modern humans. Manipulation of temperature permitted migration to colder areas (erectus leaving africa) Early african specimens may be different species, homo ergaster. Distinguished from h. erectus by its thinner skull-bones and lack of an obvious supraorbital foramen (brow ridges)
