Definitions for "Australopithecus afarensis"
( os-trail-oh-pith ah-cuss ah-far-en sis)A fossil species from East Africa, the oldest well-established species in the hominid line. Dated from 4 to 3 mya, afarensis had a small, chimp-sized brain but walked fully upright.
fossils found in Ethiopia; from 3.5 to 4 million years ago
Homo habilis Pleistocene
The successor of Australopithecus anamensis. Discovered in 1973 by Donald Johanson at Hadar.