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Caption: Plant samples for radiocarbon dating. This image relates to a paper that appeared in the October 19, 2012, issue of Science, published by AAAS. The paper, by Christopher Bronk Ramsey at University of Oxford in Oxford, UK, and colleagues was titled, "A Complete Terrestrial Radiocarbon Record for 11.2 to 52.8 kyr B.P.s."
Credit: Image courtesy of Richard Staff.
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