The Early Stages Of Human Evolution

The line to modern humans includes as many as 15 species, eight species of australopiths and seven of Homo. Until 1990, the australopiths were generally all assigned to one genus, Australopithecus, but new finds suggest that as many as six genera is a more appropriate division: Orrorin and Sahelanthropus from the late Miocene, Ardipithecus and Praeanthropus from the Pliocene and Australopithecus and Paranthropus from the Plio-Pleistocene. Similarly, after a century of ever more subdivision, most anthropologists had lumped all specimens of Homo into three species, but current views indicate perhaps seven, or up to ten by some counts.

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