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Science 25 January 2008:
Vol. 319. no. 5862, pp. 402 - 403
DOI: 10.1126/science.319.5862.402
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News Focus

GEOLOGY:
A Time War Over the Period We Live In

Richard A. Kerr

Like astronomers battling over the status of Pluto, geoscientists are revving up to settle the fate of the interval of time known as the Quaternary, as well as the status, some feel, of an entire field.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)