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Science 24 November 2006:
Vol. 314. no. 5803, pp. 1254 - 1255
DOI: 10.1126/science.1135738
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Perspectives

PALEOECOLOGY:
Life's Complexity Cast in Stone

Wolfgang Kiessling

The fossil record shows that since the end of the Paleozoic era, the structure of marine communities has become more complex.

The author is at the Museum für Naturkunde, Humboldt-Universität, 10115 Berlin, Germany E-mail: wolfgang.kiessling{at}museum.hu-berlin.de

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