 A partial cranium was fully unearthed August 6, though it had to be reconstructed from its fragments which were scattered in the scree.Once he had examined the cranium, Louis determined it to be subadult, or adolescent, based on its dentition, and he and Mary began to call it "Dear Boy".He also believed that it was of a species ancestral to modern humans but a member of the subfamily Australopithecinae.