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Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals

The early diversification of animals (∼630 Ma), and their development into both motile and macroscopic forms (∼575–565 Ma), has been linked to stepwise increases in the oxygenation of Earth's surface environment. However, establishing such a linkage between oxygen and evolution for the later Ca...

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Autores principales: Chen, Xi, Ling, Hong-Fei, Vance, Derek, Shields-Zhou, Graham A., Zhu, Maoyan, Poulton, Simon W., Och, Lawrence M., Jiang, Shao-Yong, Li, Da, Cremonese, Lorenzo, Archer, Corey
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479002/
https://www.ncbi.nlm.nih.gov/pubmed/25980960
http://dx.doi.org/10.1038/ncomms8142
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author Chen, Xi
Ling, Hong-Fei
Vance, Derek
Shields-Zhou, Graham A.
Zhu, Maoyan
Poulton, Simon W.
Och, Lawrence M.
Jiang, Shao-Yong
Li, Da
Cremonese, Lorenzo
Archer, Corey
author_facet Chen, Xi
Ling, Hong-Fei
Vance, Derek
Shields-Zhou, Graham A.
Zhu, Maoyan
Poulton, Simon W.
Och, Lawrence M.
Jiang, Shao-Yong
Li, Da
Cremonese, Lorenzo
Archer, Corey
author_sort Chen, Xi
collection PubMed
description The early diversification of animals (∼630 Ma), and their development into both motile and macroscopic forms (∼575–565 Ma), has been linked to stepwise increases in the oxygenation of Earth's surface environment. However, establishing such a linkage between oxygen and evolution for the later Cambrian ‘explosion' (540–520 Ma) of new, energy-sapping body plans and behaviours has proved more elusive. Here we present new molybdenum isotope data, which demonstrate that the areal extent of oxygenated bottom waters increased in step with the early Cambrian bioradiation of animals and eukaryotic phytoplankton. Modern-like oxygen levels characterized the ocean at ∼521 Ma for the first time in Earth history. This marks the first establishment of a key environmental factor in modern-like ecosystems, where animals benefit from, and also contribute to, the ‘homeostasis' of marine redox conditions.
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spelling pubmed-44790022015-06-29 Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals Chen, Xi Ling, Hong-Fei Vance, Derek Shields-Zhou, Graham A. Zhu, Maoyan Poulton, Simon W. Och, Lawrence M. Jiang, Shao-Yong Li, Da Cremonese, Lorenzo Archer, Corey Nat Commun Article The early diversification of animals (∼630 Ma), and their development into both motile and macroscopic forms (∼575–565 Ma), has been linked to stepwise increases in the oxygenation of Earth's surface environment. However, establishing such a linkage between oxygen and evolution for the later Cambrian ‘explosion' (540–520 Ma) of new, energy-sapping body plans and behaviours has proved more elusive. Here we present new molybdenum isotope data, which demonstrate that the areal extent of oxygenated bottom waters increased in step with the early Cambrian bioradiation of animals and eukaryotic phytoplankton. Modern-like oxygen levels characterized the ocean at ∼521 Ma for the first time in Earth history. This marks the first establishment of a key environmental factor in modern-like ecosystems, where animals benefit from, and also contribute to, the ‘homeostasis' of marine redox conditions. Nature Pub. Group 2015-05-18 /pmc/articles/PMC4479002/ /pubmed/25980960 http://dx.doi.org/10.1038/ncomms8142 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Chen, Xi
Ling, Hong-Fei
Vance, Derek
Shields-Zhou, Graham A.
Zhu, Maoyan
Poulton, Simon W.
Och, Lawrence M.
Jiang, Shao-Yong
Li, Da
Cremonese, Lorenzo
Archer, Corey
Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals
title Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals
title_full Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals
title_fullStr Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals
title_full_unstemmed Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals
title_short Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals
title_sort rise to modern levels of ocean oxygenation coincided with the cambrian radiation of animals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4479002/
https://www.ncbi.nlm.nih.gov/pubmed/25980960
http://dx.doi.org/10.1038/ncomms8142
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