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Science. 1999 Apr 23;284(5414):629-35.

Australopithecus garhi: a new species of early hominid from Ethiopia.

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Rift Valley Research Service, Post Office Box 5717, Addis Ababa, Ethiopia.

Erratum in

  • Science 1999 Jun 4;284(5420):1623.
  • Science. 2004 Apr 30;304(5671):684.


The lack of an adequate hominid fossil record in eastern Africa between 2 and 3 million years ago (Ma) has hampered investigations of early hominid phylogeny. Discovery of 2.5 Ma hominid cranial and dental remains from the Hata beds of Ethiopia's Middle Awash allows recognition of a new species of Australopithecus. This species is descended from Australopithecus afarensis and is a candidate ancestor for early Homo. Contemporary postcranial remains feature a derived humanlike humeral/femoral ratio and an apelike upper arm-to-lower arm ratio.

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