Gracile Australopithecines

A general term for Australopithecus afarensis and A africanus that have been so designated because of their lighter build, and differences in skull, teeth
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Indeed, says Vrba, South African robust australopithecines may have occupied more arid, open stretches of savanna than did gracile australopithecines. The numerous bones of grass-grazing antelopes found deposited with robust australopithecine remains support this conclusion, the Yale paleontologist asserts.
Both robust and gracile australopithecines lived in relatively open savanna regions, she adds.
africanus specimens, which Falk considers gracile australopithecines.