Abiotic forcing of plankton evolution in the Cenozoic

Schmidt, D.N., Thierstein, H.R., Bollmann, J. and Schiebel, R. (2004) Abiotic forcing of plankton evolution in the Cenozoic. Science, 303, (5655), 207-210. (doi:10.1126/science.1090592).


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Original Publication URL: http://dx.doi.org/10.1126/science.1090592


We characterize the evolutionary radiation of planktic foraminifera by the test size distributions of entire assemblages in more than 500 Cenozoic marine sediment samples, including more than 1 million tests. Calibration of Holocene size patterns with environmental parameters and comparisons with Cenozoic paleoproxy data show a consistently positive correlation between test size and surface-water stratification intensity. We infer that the observed macroevolutionary increase in test size of planktic foraminifera through the Cenozoic was an adaptive response to intensifying surface-water stratification in low latitudes, which was driven by polar cooling.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1126/science.1090592
ISSNs: 0036-8075 (print)
Related URLs:
Subjects: Q Science > QH Natural history
G Geography. Anthropology. Recreation > GC Oceanography
Divisions : University Structure - Pre August 2011 > School of Ocean & Earth Science (SOC/SOES)
ePrint ID: 35592
Accepted Date and Publication Date:
Date Deposited: 22 May 2006
Last Modified: 31 Mar 2016 12:03
URI: http://eprints.soton.ac.uk/id/eprint/35592

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