The first Australopithecus boisei specimen, originally named Zinjanthropus boisei, was discovered in 1959 by Mary Leaky at the Olduvai Gorge in Tanzania, Africa. A. boisei skulls have been found in Ethiopia, Tanzania, and Kenya with two of the most prominent being the KNM OH 5 and KNM ER-406 specimens.
Skull Length -22. 5cms (8. 8in)
Origin: Olduvia Gorge, Tanzania