BIOLOGY 1M03 Lecture Notes - Homo Floresiensis, Scapula, Prepared-Core Technique
5 Apr 2013
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Document Summary
Hominins of the lower pleistocene: have been much less flexible than ours. Pleistocene epoch began 1. 8 mya and saw a cooling of world"s climate: divided pleistocene into three parts: lower, middle, and upper. Homo ergaster appeared in eurasia about the same time it was first known from africa: new name given was homo ergaster or work man , homo ergaster was the first hominin to make its way out of africa. Also uncovered two nearly complete crania at dmnaisi that are very. Smaller , less prognathic face, a higher skull, and smaller jaws and teeth. Horizontal ridge at back of skull (occipital torus) Large brow ridges: derived traits are probably related to diet. Better adapted for tearing and biting with canines and incisors. Less suited for heavy chewing with molars. Teeth are smaller than australopithecines and paranthropines, but molars are reduced relatively more in comparison with incisors: has substantially larger brain than earlier hominins.
