The Paleocene record of marine diatoms in deep-sea sediments

<p>Marine planktonic diatoms, as today's ocean main carbon and silicon exporters, are central to developing an understanding of the interplay between the evolution of marine life and climate change. The diatom fossil record extends as far as the Early Cretaceous, and the late Paleogene...

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Main Authors: J. Renaudie, E.-L. Drews, S. Böhne
Format: Article
Language:English
Published: Pensoft Publishers 2018-08-01
Series:Fossil Record
Online Access:https://www.foss-rec.net/21/183/2018/fr-21-183-2018.pdf
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author J. Renaudie
E.-L. Drews
E.-L. Drews
S. Böhne
S. Böhne
author_facet J. Renaudie
E.-L. Drews
E.-L. Drews
S. Böhne
S. Böhne
author_sort J. Renaudie
collection DOAJ
description <p>Marine planktonic diatoms, as today's ocean main carbon and silicon exporters, are central to developing an understanding of the interplay between the evolution of marine life and climate change. The diatom fossil record extends as far as the Early Cretaceous, and the late Paleogene to Recent interval is relatively complete and well documented. Their early Paleogene record, when diatoms first expanded substantially in the marine plankton, is hampered by decreased preservation (notably an episode of intense chertification in the early Eocene) as well as by observation bias. In this article, we attempt to correct for the latter by collecting diatom data in various Paleocene samples from legacy Deep Sea Drilling Project and Ocean Drilling Program deep-sea sediment sections. The results show a different picture from what previous analyses concluded, in that the Paleocene deep-sea diatoms seem in fact to have been as diverse and abundant as in the later Eocene, while exhibiting very substantial survivorship of Cretaceous species up until the Eocene.</p>
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spelling doaj.art-89f779cfea7b4fa98c240763612309a02024-01-02T03:00:50ZengPensoft PublishersFossil Record2193-00662193-00742018-08-012118320510.5194/fr-21-183-2018The Paleocene record of marine diatoms in deep-sea sedimentsJ. Renaudie0E.-L. Drews1E.-L. Drews2S. Böhne3S. Böhne4Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, GermanyMuseum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, GermanyRheinische Friedrich-Wilhelms-Universität, Bonn, GermanyMuseum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Berlin, GermanyRheinische Friedrich-Wilhelms-Universität, Bonn, Germany<p>Marine planktonic diatoms, as today's ocean main carbon and silicon exporters, are central to developing an understanding of the interplay between the evolution of marine life and climate change. The diatom fossil record extends as far as the Early Cretaceous, and the late Paleogene to Recent interval is relatively complete and well documented. Their early Paleogene record, when diatoms first expanded substantially in the marine plankton, is hampered by decreased preservation (notably an episode of intense chertification in the early Eocene) as well as by observation bias. In this article, we attempt to correct for the latter by collecting diatom data in various Paleocene samples from legacy Deep Sea Drilling Project and Ocean Drilling Program deep-sea sediment sections. The results show a different picture from what previous analyses concluded, in that the Paleocene deep-sea diatoms seem in fact to have been as diverse and abundant as in the later Eocene, while exhibiting very substantial survivorship of Cretaceous species up until the Eocene.</p>https://www.foss-rec.net/21/183/2018/fr-21-183-2018.pdf
spellingShingle J. Renaudie
E.-L. Drews
E.-L. Drews
S. Böhne
S. Böhne
The Paleocene record of marine diatoms in deep-sea sediments
Fossil Record
title The Paleocene record of marine diatoms in deep-sea sediments
title_full The Paleocene record of marine diatoms in deep-sea sediments
title_fullStr The Paleocene record of marine diatoms in deep-sea sediments
title_full_unstemmed The Paleocene record of marine diatoms in deep-sea sediments
title_short The Paleocene record of marine diatoms in deep-sea sediments
title_sort paleocene record of marine diatoms in deep sea sediments
url https://www.foss-rec.net/21/183/2018/fr-21-183-2018.pdf
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