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( Ardipithecus)
†Ardipithecus kadabba
†Ardipithecus ramidus Because this genus shares several traits with the African great ape genera (genus Pan and genus Gorilla), it is considered by some to be on the chimpanzee rather than human branch, but most consider it a proto-human because of a likeness in teeth with Australopithecus. Two species have been described, Ardipithecus ramidus and Ardipithecus kadabba, which was initially described as a subspecies of A. ramidus, but on the basis of teeth recently discovered in Ethiopia has been raised to species rank. Remains from both species have been found in the Middle Awash. In 1992-1993 a research team headed by Dr Timothy White discovered the first A. ramidus fossils—seventeen fragments including skull, mandible, teeth and arm bones—from the Afar Depression in the Middle Awash river valley of Ethiopia. More fragments were recovered in 1994, amounting to 45 percent of the total skeleton. Features of the foramen magnum and leg fragments are indicative of bipedalism.[2][3]
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