Australopithecus robustus

(source of picture: Historical Geology)

The Australopithecus robustus dates from approximately 2.3 - 1.3 million years ago. The difference between Ausrtalopithecus robustus and both afarensis and africanus becomes apparent in the comparison of their structure. Australopithecus robustus had an average height of 1.5 m and weighed 45 kg on average (much larger then both Australopithecus afarenis and africanus). As well as a larger bone structure, the Australopithecus robustus also had a larger cranium capacity ranging from 500 - 600 cc, housed by an large skull. (Wicander and Monroe 1993)

As is characteristic of most of the Australopithecus, robustus had a flat face. It's muscular jaw and flat, almost molar-like teeth seemed to imply that the Australopithecus was likely a vegetarian
(Wicander and Monroe 1993)

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