The oldest cut stone tools bear witness to their repeated invention

PUBLICATION IN PNAS (Proceedings of the National Academy of Sciences)

stone tools  Publication PNAS
A new archaeological site discovered by an international team of scientists in Ethiopia, including Guillaume Dupont-Nivet (Rennes Geosciences), shows that the production of stone tools dates back more than 2.58 million years. Previously, the oldest evidence of systematic production and use of stone tools was 2.58 to 2.55 million years ago. Analysis of early stone age sites, published in PNAS in June 2019, suggests that stone tools may have been invented several times and in different ways before becoming an essential part of the human line.
 

Reference : David Braun, Vera Aldeias, Will Archer, J Ramon Arrowsmith, Niguss Baraki, Christopher J. Campisano, Alan L. Deino, Erin N. DiMaggio, Guillaume Dupont-Nivet, et al.. Earliest known Oldowan artifacts at >2.58 Ma from Ledi-Geraru, Ethiopia, highlight early technological diversity. Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 2019, 116 (24), pp.11712-11717. Doi : 10.1073/pnas.1820177116

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