STAGES OF HUMAN EVOLUTION

STAGES OF HUMAN EVOLUTION

Holocene

Late Pleistocene

Pleistocene epoch

Late Pliocene and early Pleistocene.

Miocene epoch

The Sahelanthropus tchadensis lived 6-7 million years ago, in what is now Kenya. They had small brains and flat faces. Evidence shows that the foramen magnum in the Sahelanthropus is more forward, like it is in other primates. This characteristic implies Sahelanthropus walked erect on two legs.

Australopithecus africanus lived about 3 million years ago. Au. africanus had a rounder cranium, a larger brain, smaller teeth, long limbs and a sloping face with a pronounced jaw. Au. africanus' pelvis, femur, and foot bones imply bipedalism, but its pronounced shoulder and hand bones imply intense climbing.

The Homo sapiens have lived since 30,000 years ago to the present time. They originally lived in africa and now live worldwide. Modern humans have larger brains, smaller brow bridges, weaker jaws and smaller teeth.

Homo Erectus lived about 800,000 years ago. Research show that these ancient people had the same proportions as modern humans, with longer legs and smaller arms in relation to the size of the torso as they were adapting to life on land from no longer needing to climb trees and high levels of places.

Homo neanderthals lived about 120,000 years ago. Their skulls were wide, they had flat foreheads, prominent cheekbones, and broad, bulbous noses that served to trap body heat and humidify the air. They also had stocky bodies to help keep them warm Their brain size was large in comparison to their bodies