ANT 2000 Chapter Notes - Chapter 8: Foramen Magnum, Sahelanthropus, Brain Size
Document Summary
Ardipithecus: the earliest widely hominin genus indicates a capacity-albeit an imperfect one- for upright bipedal locomotion. Their pelvis appears to be transitional between one suited for arboreal climbing and one modified for bipedalism. Australopithecus afarensis: a bipedal hominin that lived more than three million years ago had cranial capacity that barely surpassed the chimp average. The form of their skill also is like that of the chimpanzee. Although the brain-to-body size ration may have been larger. July 2001 anthropologists working in central africa- the northern chad"s djurab desert- unearthed the six-to seven-million-year-old skull of the oldest possible human ancestor yet found,. Toumai is a nearly complete, although distorted skull. The placement of its foramen magnum (the big hole through which the spinal cord joints the brain) farther forward than in apes suggests that sahelanthropus moved bipedally. In october 2009, a newly reported ardipithecus find- a fairly complete skeleton of.
