Age of Zinjanthropus

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Science  27 Apr 1962:
Vol. 136, Issue 3513, pp. 293-295
DOI: 10.1126/science.136.3513.293


Because some of the Olduvai Gorge dates are inconsistent, some must be inaccurate; they may all be. Until further tests determine which materials give dependable dates, we do not know which dates are accurate. Until this is learned, the indicated ages must be taken cum grano salis.

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