Products/Anatomy/Human Skull Models

SKU: BH-026

Australopithecus boisei, female, KNM-ER 732

AU$377.40 ex GST

Australopithecus boisei skull, female (1.7 million years).

Female.  The Australopithecus boisei skull KNM ER 732 was discovered in 1970 at Koobi Fora, Kenya by R. Leakey and H. Mutua and described in Nature in 1971.  A comparative analysis of KNM ER 732 and KNM ER 406 revealed a host of similarities with the only differences (e.g., smaller size, lack of sagittal and nuchal crests in KNM ER 732) being typical of the sexual dimorphism found in great ape skulls.  Consequently, KNM ER 732 is considered to be a female and KNM ER 406 a male of the species, Australopithecus boisei.  Using the sexual dimorphism found in this pair as a guide, researchers suggested that A. robustus and A. africanus, which had been hypothesized by some to be male and female specimens of the same species, were, in fact, far more different than one would expect from simple sexual dimorphism.  They proposed instead that A. robustus and A. africanus were separate species.

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