2.5-million-year-old stone tools from Gona, Ethiopia

@article{Semaw199725millionyearoldST,
  title={2.5-million-year-old stone tools from Gona, Ethiopia},
  author={Sileshi Semaw and Paul R. Renne and J. W. K. Harris and Craig S. Feibel and Raymond L. Bernor and Nabreed Fesseha and Kate Mowbray},
  journal={Nature},
  year={1997},
  volume={385},
  pages={333-336}
}
The Oldowan Stone tool industry was named for 1.8-million-year-old (Myr) artefacts found near the bottom of Olduvai Gorge, Tanzania. Subsequent archaeological research in the Omo (Ethiopia) and Turkana (Kenya) also yielded stone tools dated to 2.3 Myr. Palaeoanthropological investigations in the Hadar region of the Awash Valley of Ethiopia1, revealed Oldowan assemblages in the adjacent Gona River drainage2. We conducted field work in the Gona study area of Ethiopia between 1992 and 1994 which… 
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