BIOLOGY 1M03 Chapter Notes - Chapter 12: Homo Heidelbergensis, Denisovan, Archaic Humans
21 Mar 2017
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Features: occipital torus, large brow ridges, adapted to tearing and biting- smaller teeth, drier environment, hairless, 800cc, long legs, narrow hips, narrow shoulders, reduced sexual dimorphism, capacity for long distance running. Developed slower than australopiths, but faster than modern humans. Tools: biface, hand ax, cleaver, pick, bifaces- mode 2, but also mode 1, hand axes- for butchery (more in slides) Dispersal out of africa: occupied most of africa and eurasia. Elbows- arms rotated in a manner that hands face forward, not inwards. Lower limb proportion- high femoral to tibia, humeral to femoral ratios, well developed foot arches. More massive face as compared to ergaster, less domed, pronounced cranium, sagittal keel. Mostly mode 1- lack of mode 2 : lacked cognitive ability. Africa, western eurasia- 1st half of pleistocene. Archaic modern looking hominins as archaic homo sapiens. Longer arms to legs, large feet and no foot arches. Smaller size preferred- less predation and food supplies.
