Australopithecus Boisei lived from around 2.2 million years ago to about 1.3 million years ago. Remains have been found in East Africa, Omo Basin, Ethiopia, Lake Turkana, Kenya, and Olduvai Gorge, Tanzania.

A. Boisei had a slightly larger cranial capacity (490-530cc) and a huge chewing apparatus with enormous molar teeth, expanded premolars that look like molars, thick check bones, a thick jaw, and a more pronounced cranial crest.

Information provided by: http://www.anthro.mankato.msus.edu