The structure and distribution of the European Cretaceous brachiopod assemblages with emphasis on the Tethyan fauna
The structure and distribution of the European Cretaceous brachiopod assemblages with emphasis on the Tethyan fauna
复制标题
欧洲白垩纪腕足动物群的结构和分布，重点是特提斯动物群
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
J. Michalík
中科院分区：
文献类型：
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作者：
J. Michalík
白垩纪是腕足类动物衰落的时期，它们试图重新占据浅海群落中失去的生态位，但没有成功。白垩纪腕足动物组合的结构比古生代简单得多。然而，对这些组合的数量构成的分析提供了对其发展的指导性观点，其特点是频繁的机会主义和组合演变的中断。分布的波动也是白垩纪腕足类古生物地理学的典型特征，这使得特提斯、汝拉和北方地区之间相互边界的精确划分即使不是详细推测，也是有问题的。
The Cretaceous was a time of decline for brachiopods, which tried unsuccessfully to re-occupy lost niches in the neritic communities. The structure of the Cretaceous brachiopod assemblages was much simpler than that of the Paleozoic ones. Nevertheless, the analysis of the quantitative composition of these assemblages provides an instructive view of their development, which is characterized by frequent opportunism and interruptions of the evolution of assemblages. Fluctuations in distribution are also typical for Cretaceous brachiopod paleobiogeography, making the exact delimitation of the mutual boundaries between a Tethyan, a Jura and a Boreal realm problematic, if not speculative in detail.