Inferred Phylogenetic Relationships

The analyses conducted here consistently support certain phylogenetic relationships. The most consistent result is that the "australopithecines" are paraphyletic. Next, Australopithecus africanus is more derived in the

Kenyapithecus Dryopithecus Graecopithecus Pongo Gorilla Pan

Sahelanthropus Ardipithecus Anamensis Praeanthropus K. platyops K. rudolfensis H. habilis H. ergaster H. sapiens Australopithecus P. walkeri P. boisei P. robustus Garhi

Figure 5.9 ► Majority-rule typology, three extra steps from consensus (see text for details).

hominin direction (relative to the other species generally allocated to Australopithecus) and in all cases is basal to the clade containing Kenyanthropus and Homo. Homo habilis is usually considered the basal species to the Homo clade, while P. walkeri is basal to Paranthropus. The "1470 group" is confirmed as being a species of Kenyanthropus (K. rudolfensis) as they consistently form a sister-group relationship to the exclusion of all other taxa. The monophyletic status of Paranthropus is in all cases confirmed. Ardipithecus and the anamensis group are shown in almost all cases to reflect the basal Plio/Pleistocene hominid condition, with the Miocene Sahelanthropus being derived from it. The phylogenetic status of Sahelanthropus, Praeanthropus, and the garhi group, however, remains far more problematic, though overall they seem to represent a

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