Contrasting Early Ordovician assembly patterns highlight the complex initial stages of the Ordovician Radiation.
Contrasting Early Ordovician assembly patterns highlight the complex initial stages of the Ordovician Radiation.
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DOI：
10.1038/s41598-022-07822-z
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发表时间：
2022-03-09
影响因子：
4.6
通讯作者：
Lefebvre B
中科院分区：
文献类型：
--
作者：
Saleh F;Guenser P;Gibert C;Balseiro D;Serra F;Waisfeld BG;Antcliffe JB;Daley AC;Mángano MG;Buatois LA;Ma X;Vizcaïno D;Lefebvre B
早奥陶世是我们理解地球生命演化的关键时期，因为它处于寒武纪爆发和奥陶纪辐射之间的过渡时期，而且晚寒武世的化石记录很少。在这项研究中，探索了来自中央反阿特拉斯(摩洛哥)、蒙塔涅黑区(法国)和科迪莱拉东方(阿根廷)的早奥陶世三叶虫和棘皮动物群落的组装过程。结果表明，在早奥陶世，三叶虫群落的扩散呈历时递增趋势。棘皮动物的分散性没有增加。扩散最有可能是由浮游生物革命、海水温度下降、海洋环流变化引发的，总体上受到构造框架和系统发育限制的控制。早奥陶世三叶虫群落内扩散的历时增加突显了奥陶纪辐射早期生态系统结构的复杂性。随着早奥陶世区域扩散和中、晚奥陶世陆相扩散的充分记录，可以认为，在全球分类学丰富度增加的同时，奥陶纪的辐射也以逐渐增加的扩散为特征。
The Early Ordovician is a key interval for our understanding of the evolution of life on Earth as it lays at the transition between the Cambrian Explosion and the Ordovician Radiation and because the fossil record of the late Cambrian is scarce. In this study, assembly processes of Early Ordovician trilobite and echinoderm communities from the Central Anti-Atlas (Morocco), the Montagne Noire (France), and the Cordillera Oriental (Argentina) are explored. The results show that dispersal increased diachronically in trilobite communities during the Early Ordovician. Dispersal did not increase for echinoderms. Dispersal was most probably proximally triggered by the planktic revolution, the fall in seawater temperatures, changes in oceanic circulation, with an overall control by tectonic frameworks and phylogenetic constraints. The diachronous increase in dispersal within trilobite communities in the Early Ordovician highlights the complexity of ecosystem structuring during the early stages of the Ordovician Radiation. As Early Ordovician regional dispersal was followed by well-documented continental dispersal in the Middle/Late Ordovician, it is possible to consider that alongside a global increase in taxonomic richness, the Ordovician Radiation is also characterized by a gradual increase in dispersal.
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影响因子：
8.8
作者：
Gravel, D;Canham, CD;Messier, C
通讯作者：
Messier, C
影响因子：
1.6
作者：
Lefebvre, Bertrand;Guensburg, Thomas E.;David, Bruno
通讯作者：
David, Bruno
DOI：
10.1098/rspb.2019.1634
发表时间：
2019-08-21
影响因子：
4.7
作者：
Kroger, Bjorn;Franeck, Franziska;Rasmussen, Christian M. O.
通讯作者：
Rasmussen, Christian M. O.
影响因子：
12.1
作者：
Lee, Jeong-Hyun;Riding, Robert
通讯作者：
Riding, Robert
影响因子：
13.6
作者：
Buatois, Luis A.;Mangano, M. Gabriela;Olea, Ricardo A.
通讯作者：
Olea, Ricardo A.