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Homo habilis - The fossil evidence

Which fossils were included in the original Olduvai Hominid 7 discovery?

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An illustration of Homo habilis, an early human ancestor, shown walking upright with a hairy body and ape-like features. A scale beside the figure indicates height in inches and centimeters. — Homo habilis Artist's rendering of Homo habilis, which lived from 2 to 1.5 million years ago.

The original discovery of Olduvai Hominid 7 (OH 7), which dates back approximately 1.8 million years, consisted of a juvenile individual's jaw, cranial bones, and hand bones.1