4-13-09 - The Afar Austrlopithecines The Hadar Badlands a...

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The Afar Austrlopithecines The Hadar Badlands – a huge geologic clock that extends for thousands of miles, volcanic activity A. Afarensis type specimen Al. 288 Johansen et. Al.1978 Australopithecus afarensis 3.5. – 2 mya a problem fossil: A. garhi A. Ghari – the Afar, 1999, Asfaw et al. o 2.5 mya o ore priitive than A. afarensis o human-like leg: arm proportions o ape-like upper arm: forearm proportions o o first evidence of tool use? o Butchery? Earliest australopithecines o Anamensis – forest dweller? o Afarensis – “a successful biped that spent time in the trees” Sleeping nests? Pronounced sex dimorphism – polygynous groups o Ghari? Another fossil from Chad o A. bahrelghazali
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Looks like A. afarensis Less primitive jaw Lived 3.0-3.5 mya o Michael Brunet, paleoanthropologist Part IV, Lecture 4 o The later australopithecines: L. turkana, Olduvaigorge & South Africa
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4-13-09 - The Afar Austrlopithecines The Hadar Badlands a...

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