georefid:2013-040701SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2013-07-08T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1073/pnas.1011287107<gco:CharacterString>Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish</gco:CharacterString>2010-01-01publicationgeorefid:2013-040701doi:10.1073/pnas.1011287107Dahl, Tais W.Harvard University, Department of Organismic and Evolutionary Biology, Cambridge, MA, United StatesauthorHammarlund, Emma U.University of Southern Denmark, DenmarkauthorAnbar, Ariel D.Arizona State University, United StatesauthorBond, David P. G.University of Leeds, United KingdomauthorGill, Benjamin C.Natural History Museum of Denmark, DenmarkauthorGordon, Gwyneth W.Geological Survey of Denmark and Greenland, DenmarkauthorKnoll, Andrew H.authorNielsen, Arne T.authorSchovsbo, Niels H.authorCanfield, Donald E.authorNational Academy of Sciences, Washington, DC, United StatespublisherdocumentDigitalProceedings of the National Academy of Sciences of the United States of America107 (42)17911-17915The 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.completedStratigraphyActinopterygiiAfricaanaerobic environmentArabian PeninsulaArctic regionAsiaAtlantic OceanAustralasiaAustraliaBaltic regionBaltic SeaBilateriabiodiversitybiologic evolutionBlack Seablack shaleCanadaCariaco BasinCaribbean Seachemical fractionationChinaChordataclastic rockscorrelationDevonianEast MediterraneanEast PacificEdiacaranEhEuropeeuxinic environmentFar Eastgeochemical cycleglobalIndian OceanironisotopesLeg 160Leg 161Leg 165lithostratigraphylower Paleozoicmarine sedimentsmass balanceMediterranean RidgeMediterranean SeametalsMetazoaMexicoMinorca RiseMo-98/Mo-95modernmolybdenumNeoproterozoicNorth AtlanticNorth PacificNortheast PacificOcean Drilling ProgramODP Site 1002ODP Site 964ODP Site 967ODP Site 969ODP Site 974ODP Site 975Omanorganic compoundsOsteichthyesoxygenPacific Oceanpaleo-oceanographypaleoatmospherePaleozoicPhanerozoicPiscesPlantaePrecambrianProterozoicScandinaviasedimentary rockssedimentssizeSkaneSpitsbergenstable isotopesSvalbardSwedenTeleosteitotal organic carbontrace metalsTyrrhenian SeaUnited KingdomUnited Statesupper PrecambrianVertebrataWest MediterraneanWestern Europeurn:org.iodp:exp:160urnlargerWorkCitationcampaignurn:org.iodp:exp:161urnlargerWorkCitationcampaignurn:org.iodp:exp:165urnlargerWorkCitationcampaignurn:org.iodp:exp:165:site:1002urnlargerWorkCitationstudyurn:org.iodp:exp:165urnlargerWorkCitationcampaignurn:org.iodp:exp:160:site:964urnlargerWorkCitationstudyurn:org.iodp:exp:160urnlargerWorkCitationcampaignurn:org.iodp:exp:160:site:967urnlargerWorkCitationstudyurn:org.iodp:exp:160urnlargerWorkCitationcampaignurn:org.iodp:exp:160:site:969urnlargerWorkCitationstudyurn:org.iodp:exp:160urnlargerWorkCitationcampaignurn:org.iodp:exp:161:site:974urnlargerWorkCitationstudyurn:org.iodp:exp:161urnlargerWorkCitationcampaignurn:org.iodp:exp:161:site:975urnlargerWorkCitationstudyurn:org.iodp:exp:161urnlargerWorkCitationcampaignEnglishgeoscientificInformation-141.0000154.0000-60.000084.0000AfricaAustraliaBaltic regionBaltic SeaBlack SeaCanadaChinaIndian OceanMexicoMinorca RiseOmanSpitsbergenTyrrhenian SeaUnited KingdomSupplemental information/data is available in the online version of this articleapplication/pdfunknownSEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContacthttp://www.pnas.org/content/107/42/local/masthead.pdfdownload