- Comparative Anatomy
Richard Leakey and M. Muluila
Area 1, Koobi Fora, Kenya
KNM ER 3883 is most likely an adult male of the species Homo ergaster. Most of the facial skeleton is missing although the neurocranium is fairly complete. The cranium is long and low with postorbital construction present. The zygomatic bones are massive along with a fairly large face.
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