Archeological Traces of Early Hominid Activities, East of Lake Rudolf, Kenya

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Science  17 Sep 1971:
Vol. 173, Issue 4002, pp. 1129-1134
DOI: 10.1126/science.173.4002.1129


Excavations have demonstrated that stone artifacts occur stratified within beds of Lower Pleistocene (or end Pliocene) age. At one site a low-density scatter of worked stone objects occurs together with small but significant quantities of broken-up bones. Potassium-argon dates indicate an age greater than 2 million years; thus, this may be the oldest known hominid occupation site. More than 20 hominid fossils have been recovered from various sedimentary formations in the area.