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dc.contributor.authorDahl, Tais
dc.contributor.authorHammarlund, Emma U.
dc.contributor.authorAnbar, Ariel D.
dc.contributor.authorBond, David P. G.
dc.contributor.authorGill, Benjamin
dc.contributor.authorGordon, Gwyneth W.
dc.contributor.authorKnoll, Andrew Herbert
dc.contributor.authorNielsen, Arne T.
dc.contributor.authorSchovsbo, Niels H.
dc.contributor.authorCanfield, Donald E.
dc.date.accessioned2011-04-04T20:04:16Z
dc.date.issued2010
dc.identifier.citationDahl, Tais W., Emma U. Hammarlund, Ariel D. Anbar, David P. G. Bond, Benjamin C. Gill, Gwyneth W. Gordon, Andrew H. Knoll, Arne T. Nielsen, Niels H. Schovsbo, Donald E. Canfield. 2010. Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish. Proceedings of the National Academy of Sciences of the United States of America 107(42): 17911-17915.en_US
dc.identifier.issn0027-8424en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4795060
dc.description.abstractThe evolution of Earth’s biota is intimately linked to the oxygenation of the oceans and atmosphere. We use the isotopic composition and concentration of molybdenum (Mo) in sedimentary rocks to explore this relationship. Our results indicate two episodes of global ocean oxygenation. The first coincides with the emergence of the Ediacaran fauna, including large, motile bilaterian animals, ca. 550-560 million year ago (Ma), reinforcing previous geochemical indications that Earth surface oxygenation facilitated this radiation. The second, perhaps larger, oxygenation took place around 400 Ma, well after the initial rise of animals and, therefore, suggesting that early metazoans evolved in a relatively low oxygen environment. This later oxygenation correlates with the diversification of vascular plants, which likely contributed to increased oxygenation through the enhanced burial of organic carbon in sediments. It also correlates with a pronounced radiation of large predatory fish, animals with high oxygen demand. We thereby couple the redox history of the atmosphere and oceans to major events in animal evolution.en_US
dc.description.sponsorshipEarth and Planetary Sciencesen_US
dc.description.sponsorshipOrganismic and Evolutionary Biologyen_US
dc.language.isoen_USen_US
dc.publisherNational Academy of Sciencesen_US
dc.relation.isversionofdoi:10.1073/pnas.1011287107en_US
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2964239/en_US
dash.licenseLAA
dc.subjectPhanerozoicen_US
dc.subjectmolybdenumen_US
dc.subjectblack shaleen_US
dc.subjectocean oxygenationen_US
dc.subjectpaleocean redoxen_US
dc.titleDevonian Rise in Atmospheric Oxygen Correlated to the Radiations of Terrestrial Plants and Large Predatory Fishen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalProceedings of the National Academy of Sciences of the United States of Americaen_US
dash.depositing.authorKnoll, Andrew Herbert
dash.waiver2010-08-25
dc.date.available2011-04-04T20:04:16Z
dc.identifier.doi10.1073/pnas.1011287107*
dash.contributor.affiliatedDahl, Tais
dash.contributor.affiliatedGill, B
dash.contributor.affiliatedKnoll, Andrew


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