ANT100Y1 Lecture Notes - Lecture 5: Homo Habilis, Paranthropus Aethiopicus, Australopithecus Afarensis
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Evol anth lecture 5: human evolution october 18th. Primitive (ape-like) cranial morphology and a derived (human-like) postcranial morphology. First of these changes were in the hips and movement toward bipedalism not towards having a large brain. Ethiopia (hadar, omo, and fejej) and tanzania (laetoli) Complex morphology exhibiting some ape-like traits (e. g sagittal crests) and hominin-like traits (e. g valgus knee) Fossil records indicate it lived for over a million years. Big toes hardly diverged from the rest of the foot, unlike in chimpanzees. Gait was heel-strike followed by toe-off ; the way modern humans walk. Selman (peace): fossilized skull and skeletal remains of 3 years old, female. Scapula and hand bones: gorilla-like scapula and long and curved manual phalanges indicate importance of arboreal behaviour. Dental features differ from those in a. afarensis. Postcranial features similar to those in a. afarensis. Remarkably primitive hominin at such a late date. Large face, huge, zygomatics, large skull crests, and enormous teeth.
