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Nannoplankton extinction and origination across the Paleocene-Eocene thermal maximum

Gibbs, Samantha J., Bown, Paul R., Sessa, Jocelyn A., Bralower, Timothy J. and Wilson, Paul A. (2006) Nannoplankton extinction and origination across the Paleocene-Eocene thermal maximum Science, 314, (5806), pp. 1770-1773. (doi:10.1126/science.1133902).

Record type: Article


The Paleocene-Eocene Thermal Maximum (PETM, 55 million years ago) was an interval of global warming and ocean acidification attributed to rapid release and oxidation of buried carbon. We show that the onset of the PETM coincided with a prominent increase in the origination and extinction of calcareous phytoplankton. Yet major perturbation of the surface-water saturation state across the PETM was not detrimental to the survival of most calcareous nannoplankton taxa and did not impart a calcification or ecological bias to the pattern of evolutionary turnover. Instead, the rate of environmental change appears to have driven turnover, preferentially affecting rare taxa living close to their viable limits.

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Published date: 15 December 2006


Local EPrints ID: 43923
ISSN: 0036-8075
PURE UUID: d280c76e-0070-48e6-a4b6-92c3928b6978

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Date deposited: 02 Feb 2007
Last modified: 17 Jul 2017 15:16

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Author: Paul R. Bown
Author: Jocelyn A. Sessa
Author: Timothy J. Bralower
Author: Paul A. Wilson

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