ANTHR 101 Lecture Notes - Lecture 18: Kenyanthropus, Olduvai Gorge, Homo Habilis
Document Summary
Post-cranial material suggests that they were good bipeds. Sexual dimorphism and body size suggests a multi-male/multi-female groups. Too specialized, depended on specific foods and could not adapt fast enough so they went extinct. Australopithecines were not as specialized as the paranthropines. Own species for now, but will probably be moved. Small molar and no sagittal crest (australopithecine) More data is needed to make conclusions. What is their relationship to modern humans? (philogenetic tree hypothesis) Leakys found another hominid that had a larger brain in bed i with the oldowan. Brain ~100cc larger than paranthropines and other australopithecines. More specimens were found by richard leaky in koobi for a. ~1. 8mya and had a cranial capacity of 775cc. Three following specimens could be the same species or two different ones. And which is the ancestor to modern humans. Anatomically it is very similar to australopithecines so why is it a homo? (still debated weather it is an ancestor to h. s. s.
