Evolution of species diversity of Cretaceous radiolarians from high-latitude paleobiochores

被引：0
作者：
V. S. Vishnevskaya
机构：
[1] Russian Academy of Sciences,Geological Institute
来源：
Stratigraphy and Geological Correlation | 2009年 / 17卷
关键词：
radiolarian assemblages; biodiversity; Jurassic; Cretaceous; Boreal and Tethyan provinces; extinction; anoxic events;
D O I：
暂无
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摘要：
Cretaceous radiolarians of the Boreal regions are considered. Their minimal diversity and low abundance are recorded in stratigraphic intervals corresponding to anoxic events. Paleogeographic and ecostratigraphic distribution trends of Cretaceous radiolarians are established for families Heliodiscidae, Prunobrachidae, Pseudoaulophacidae and some others. The most significant turnovers in evolution of radiolarians are confined to the latest Jurassic-earliest Cretaceous, Albian-Cenomanian, Cenomanian-Turonian, terminal Santonian-earliest Campanian transitions and to the terminal Late Cretaceous.
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页码：218 / 229
页数：11
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