ANT201H5 Chapter Notes - Chapter 3: Acheulean, Ardi, Homo Ergaster
Document Summary
Hominins: all the members of the human linage after it split with the chimpanzee lineage. The oldest fossils thought to belong to the hominin lineage are of sahelanthropus tchadensis. Fossils of the species were discovered in chad in levels dating to 7 million years ago. Ardipithecus ramidus: an early species in the hominin lineage. This species, which lived approximately 4. 5 million years ago, is known from fossils discovered in 1992 at the site of aramis in ethiopia. Lacks anatomical features of the hands and wrists required for moving around on all four limbs using knuckle walking. Differs from the great apes in that it lacks the pronounced canines. Radiation: a period in which there is a rapid increase in the diversity of a single lineage. During the period between 4 million and 2 million years ago, there was a radiation in the hominin lineage. : all the members of the human linage after it split.
