This is a high-quality museum display / teaching replica of the Homo ergaster fossil cranium KNM-ER 3733 specimen known to science. It is a brand new cast from the Bone Clones company but it does not come with the original box. Years ago, we used to be a dealer for their casts but opted to focus only on authentic specimens. This was leftover inventory from those days and is the only cast we have to offer. Since obtaining a real Homo ergaster skull or any fossil, would be literally impossible, this is an affordable and impressive display prop to show along a collection of African Acheulean stone tools since this was the primitive Man species that made them.
Here is some additional info from Bone Clones on this cast:
1.75 MYA. The Homo ergaster cranium KNM-ER 3733 was discovered by B. Ngeneo in 1975 in Koobi Fora, Kenya, and described by R. Leakey in Nature in 1976. Several teeth are intact, but no mandible was ever found.
Of great significance is the fact that this skull was found in the same sediment layer that A. boisei KNM-ER 406 had been six years earlier, adding to the evidence against the single species hypothesis, the notion that only one hominid species existed at any time in history. Also known as Homo erectus, KNM-ER 3733 is said to be very similar in appearance to the H. erectus finds of Peking, China, with a cranial capacity of 850 cc, keeling of the cranium and the presence of an occipital torus. Gracile features, wear on teeth and closure of cranial sutures suggest this individual was a mature female.