TM 266-01-060-1 exhibits a set of a set of derived features, including a long low cranium with thick and pronounced supraorbital torus, a small ape-sized braincase, and relatively weak subnasal prognathism¹. This specimen preserves some teeth that show that this individual had large central upper incisors and and non-incisiform canines. The face of TM 266-01-060-1 is notably less prognathic than that of Australopithecus, and has a larger and more continuous supraorbital torus and longer braincase than that of Australopithecus. These features help to distinguish the fossil from other known genera Homo¹.

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2. Johanson D and Edgar B. 2006. From Lucy to Language: Revised, Updated, and Expanded. New York: Simon and Schuster.