ANTB14H3 Lecture Notes - Photo Manipulation, Corn Flakes, Magdalenian
9 Dec 2013
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Document Summary
Absolute difference refer to unique features that distinguish one species from another. Relative differences typically refer to slight variations in a trait between taxa. Mya: from sites in tanzania, kenya, and ethiopia. Species designation: brain size and association with stone tools. Type specimen: the original specimen from which the description of a new species is made. Researches don"t know how vertical the face is because of the of fossils. Mosaic evolution combo of derived and primitive characteristics. The first definitive hominin to be found outside africa. Thicker cranial bones, larger brow ridges, smaller molars and premolars, and more gracile mandible. Homo ergaster skulls, like the skull of knm-er 3733 illustrated here, show a mix of primitive and derived features. Found in africa at about 1. 8 mya. Found in eurasia (georgia) at about 1. 1 to 1. 7 mya. Derived morphological characteristics: large bodies, long legs/short arms, reduced sexual dimorphism, and large brow ridges.
