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New four-million-year-old hominid species from Kanapoi and Allia Bay, Kenya

Nature volume 376, pages 565571 (17 August 1995) | Download Citation

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Abstract

Nine hominid dental, cranial and postcranial specimens from Kanapoi, Kenya, and 12 specimens from Allia Bay, Kenya, are described here as a new species of Australopithecus dating from between about 3.9 million and 4.2 million years ago. The mosaic of primitive and derived features shows this species to be a possible ancestor to Australopithecus afarensis and suggests that Ardipithecus ramidus is a sister species to this and all later hominids. A tibia establishes that hominids were bipedal at least half a million years before the previous earliest evidence showed.

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Affiliations

  1. National Museums of Kenya, PO Box 40658, Nairobi, Kenya

    • Meave G. Leakey
  2. Department of Anthropology, Rutgers University, New Brunswick, New Jersey 08903-0270, USA

    • Craig S. Feibel
  3. Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia

    • Ian McDougall
  4. Departments of Anthropology and Biology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

    • Alan Walker

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https://doi.org/10.1038/376565a0

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