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Ardipithecus kadabba
''Ardipithecus kadabba'' is "known only from teeth and bits and pieces of skeletal bones",. The skeleton remains were first dated to 5.8 to 5.2 million years ago, and later on from 5.77 to 5.54 million years.〔(Webseite von Yohannes Haile-Selassie )〕 According to the first description, the fossils are close to the common ancestor of chimps and humans, their development lines are biomolecular estimates parted from 6.5 to 5.5 million years ago.〔Yohannes Haile-Selassie: ''Late Miocene hominids from the Middle Awash, Ethiopia.''〕
It has been described as a "probable chronospecies" (i.e. ancestor) of ''A. ramidus''. Although originally considered a subspecies of ''A. ramidus'', in 2004 anthropologists Yohannes Haile-Selassie, Gen Suwa, and Tim D. White published an article elevating ''A. kadabba'' to species level on the basis of newly discovered teeth from Ethiopia. These teeth show "primitive morphology and wear pattern" which demonstrate that ''A. kadabba'' is a distinct species from ''A. ramidus''.
The specific name comes from the Afar word for "basal family ancestor".
== Name ==
The name of the genus Ardipithecus is partly derived from the Afar language (of "Ardi" = soil), partly from the Greek (from "πίθηκος", ancient Greek pronounced "píthēkos" = monkey). The epithet kadabba comes from the Afar language and refers to the father of a family. Ardipithecus kadabba accordingly means mutatis mutandis "progenitor of the ground ape".
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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