Abstract

Over the past 75 years since the discovery of the first australopithecine at Taung in southern Africa there has been a growing realisation that there is no simple, linear ancestor-descendant relationship connecting the australopithecines to laterHomo. There are currently at least ten recognised species of australopithecine, including two species of earlyHomo, that have been recently transferred to the genusAustralopithecus. These known species span the period between about 4.2-1.2 Ma and throughout the majority of this period there are multiple contemporaneous hominin species in eastern and southern Africa. This contribution reviews current knowledge about the australopithecine species and their inferred relationships to each other and to the genusHomo. At present it is impossible to resolve the phylogenetic relationships of the australopithecines with any degree of confidence. There is a growing realisation of the ‘bushy’ nature of hominin evolution throughout the australopithecine period and also of the inevitability that additional early hominin species remain to be discovered.

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