Earliest Stone-Tipped Projectiles from the Ethiopian Rift Date to >279,000 Years Ago

• Yonatan Sahle ,

  * E-mail: yonatan.chemere@uct.ac.za

  Current address: Human Evolution Research Center, University of California, Berkeley, California, United States of America

  Affiliation Department of Archaeology, University of Cape Town, Cape Town, South Africa

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• W. Karl Hutchings,

  Affiliation Department of Sociology and Anthropology, Thompson Rivers University, Kamloops, Canada

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• David R. Braun,

  Affiliations Department of Archaeology, University of Cape Town, Cape Town, South Africa, Department of Anthropology, George Washington University, Washington DC, United States of America

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• Judith C. Sealy,

  Affiliation Department of Archaeology, University of Cape Town, Cape Town, South Africa

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• Leah E. Morgan,

  Affiliation Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom

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• Agazi Negash,

  Affiliation Paleoanthropology and Paleoenvironment Program, Addis Ababa University, Addis Ababa, Ethiopia

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• Balemwal Atnafu

  Affiliation Department of Earth Sciences, Addis Ababa University, Addis Ababa, Ethiopia

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