Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals.
Rise to modern levels of ocean oxygenation coincided with the Cambrian radiation of animals.
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海洋含氧量上升到现代水平与动物的寒武纪辐射同时发生
DOI:
10.1038/ncomms8142
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发表时间:
2015-05-18
影响因子:
16.6
通讯作者:
Archer, Corey
中科院分区:
文献类型:
--
作者:
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
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. The Cambrian explosion of biological diversity has been associated with widespread ocean oxygenation, yet early Cambrian ocean redox conditions remain controversial. Here, the authors present a suite of molybdenum isotope data and show that the ocean was oxygenated to modern-like levels by 521 Ma.
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影响因子:
3.4
作者:
Goldberg, Tatiana;Gordon, Gwyneth;Rehkaemper, Mark
通讯作者:
Rehkaemper, Mark
影响因子:
56.9
作者:
Arnold, GL;Anbar, AD;Lyons, TW
通讯作者:
Lyons, TW
影响因子:
56.9
作者:
Canfield, Don E.;Poulton, Simon W.;Narbonne, Guy M.
通讯作者:
Narbonne, Guy M.
影响因子:
5.3
作者:
Kendall, Brian;Gordon, Gwyneth W.;Anbar, Ariel D.
通讯作者:
Anbar, Ariel D.
影响因子:
3.9
作者:
Asael, Dan;Tissot, Francois L. H.;Cheron, Sandrine
通讯作者:
Cheron, Sandrine