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.nnSpecifications:nn1:1 scalenHigh-quality polyurethane resin castn2-part skull (separate cranium and jaw)nnSkull Length 22.5 cm (8.8 in.)nnOrigin: Olduvia Gorge, TanzaniannPlease be advised that this product is made to order and will require additional lead time. For further information about the availability and turnaround time of this item, please contact our customer service team at 1-800-659-SKULL.