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Oldest Evidence of Toolmaking Hominins in a Grassland-Dominated Ecosystem
- Thomas W. Plummer,
- Peter W. Ditchfield,
- Laura C. Bishop,
- John D. Kingston,
- Joseph V. Ferraro,
- David R. Braun,
- Fritz Hertel,
- Richard Potts
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- Published: October 21, 2009
- https://doi.org/10.1371/journal.pone.0007199