Discovered in 1973, there is still controversy about this specimen's classifications, with some scientists opting to classify it as an Australopithecene, others believing it is a species of Homo. This individual has a small face, small teeth and small brain. The specimen shows similarities with H. rudolphensis, though it is much smaller. Its size is not due to immaturity, as its third molar shows wear. It has been suggested that it may be a female, but even so, its brain size of 510 cc indicated a size difference too great for a case of sexual dimorphism (smaller females) and classification as rudolphensis.

Size: 6 3/4"L, 4 1/4"W, 5"H
Origin: Koobi, Kenya
Age: 1.9 million years old
Grade: Museum Quality