ANT100Y1 Lecture Notes - Lecture 5: Homo Antecessor, Australopithecus, Homo Floresiensis
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Lecture 5: hominins, human variation and forensic anthropology. General patterns of morphology for some key fossil hominins. Partial tibia provides strong evidence for bipedality. Primitive (ape-like) cranial morphology and a derived (human-like) tooth row is parallel (ape-like) postcranial morphology. Complex morphology exhibiting some ape-like traits (eg. sagittal crests) and hominin-like traits (eg. valgus knee femur angled inwards) Laetoli footprints: 3. 6 mya in laetoli, tanzania, demonstrate that early hominins were bipedal, big toes hardly diverged from the rest of the foot, unlike in chimpanzees, gait was heel-strike followed by toe-off , the way modern humans walk. Small creatures transitional zone between able to move quickly and efficiently through threes and being bipedal. Dental features differ from those in a. afarensis. Postcranial features similar to those in a. afarensis. 2. 7-2. 3 mya large face, huge zygomatics, large skull crests and enormous teeth. October 20, 2011 remarkably primitive hominin at such a late date. Morphology broadly similar to that seen in a. aethiopicus.
