Australopithecus was a slender four-footer, weighing under 100 pounds. Standing eret, he ran with a swaying side-to-side motion, but walked in a short-stepping plod. His jaw was slightly forward-thrusting, a result of well developed canines and incisors.
Advanced Australopithecus: Distinguished from the early australopithicenes by his increased canial capacity, advanced Australopithecus was a contemporary of Paranthropus. Primitive tools have been found with both, but whether one or the other or both produced them remains unsettled; and Homo Erectus:The first man of our genus, homo erectus is modern of limb but more primitive of hand and brain, with a cranial capacity extending only into the lower ra
Australopithecus to Homo erectus. Australopithecus: Ramapithecus and this early form of Australopithecus, the first certain hominid, are seperated by a gap of nine million years. In this time, the prehumans made great advances - they walked upright, lived on the ground and may have used stones in their defense; Paranthropus: though he stood erect and had hominid features, Paranthropus represents an evolutionary dead end in man's ancestry. A vegeta
Olduvai hominid sequence. Schematic representation of the lower half of the Olduvai sequence, showing the approximate vertical position of hominid fossils (numerals enclosed in squares). The potassium-argon dates are indicated near the left margin (m = million years).
"African genesis". The story of early man in Africa is told in this chart. Gray bars in the center represent fossil and tool-bearing sites: those on the left are Beds I and II at Olduvai Gorge in East Africa; those on the right side are South African caves. On the left hand edge of the diagram are absolute dates obtained from Beds I and II by the potassium-argon method. South African dates are known only by cross-checking animal fossils there with