The process of the Paleozoic-Mesozoic mass extinction in different paleogeographic settings is different.The research on radiolarian fauna provides not only important information for the study of paleogeographic settings but also basic information for the study of biodiversity evolution.The research on the radiolarians in the basinal facies of the Permian-Triassic transition is of great significance to reveal the mass extinction among different sedimentary facies and the paleoenvironmental evolution.The Per...
有关古-中生代之交生物灭绝的规律和原因存在很大争议(Jin et al.,2000;Feng et al.,2007;Song et al.,2013;He et al.,2015).争议的原因主要在于2个方面:(1)不同成果采用了不同精度的地层对比框架;(2)忽视了不同古地理背景(如浅海碳酸盐台地相、深水盆地相等)生物演变规律的对
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