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Science 21 November 2003:
Vol. 302. no. 5649, p. 1315
DOI: 10.1126/science.302.5649.1315
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News Focus

MASS EXTINCTION:
Extinction by a Whoosh, Not a Bang?

Richard A. Kerr

A new study has fingered the largest volcanic eruption ever as the leading cause of the greatest mass extinction 251 million years ago, but a second study in this issue of Science (p. 1392) seems to diminish vastly the role of another great eruption in the death of the dinosaurs.

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