ANT101H5 Lecture 8: ANT101 Lecture 8
6 Feb 2017
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Habitual bipedal locomotion e. g. eoanthropus dawsoni (piltdown man) Human bipedalism: forward foramen magnum, spine, lbasin pelvis, long lower limbs, valgus position, foot changes. Who were the earliest hominins: sahelanthropus tchadensis, chad 7-6 mya. Unique features not seen on miocene apes: ardepithecus, aramis, ethiopia 4. 4 mya (reassigned to 5. 8-5. 2 mya) Ape-like from waist up longer arms relative to legs; Curved flexible fingers and toes: still tree climbing forward thrust of the face, large flaring cheek bones-ape like human like from the waist down bipedal: s spine; forward foramen magnum; basin shaped pelvis. Australopithecine has pelvis similar to modern human. Stature 3 to 4 ft female by pelvis. At least 13 individuals, including 4 infants. Embossed into an ancient volcanic tuff: fossilized footprints. Specific characteristics of a. afarensis (in comparison to the s. african gracile species) Small cranial capacity (aver 420cc) 310-500 cc. Relatively large canines (compared to modern humans) Ape like shaped dental arcade (parallel rows)
