Early Cretaceous rhynchonellids of Dagestan: System, morphology, stratigraphic and paleobiogeographic significance
Early Cretaceous rhynchonellids of Dagestan: System, morphology, stratigraphic and paleobiogeographic significance
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达吉斯坦早白垩世喙嘴科动物：系统、形态、地层和古生物地理学意义
DOI：
10.1134/s0031030112110019
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发表时间：
2012
影响因子：
0.6
通讯作者：
T. Smirnova
中科院分区：
文献类型：
--
作者：
T. Smirnova
首次对早白垩世达吉斯坦喙状花岗岩类进行了综合报道。其中包括基于详细形态功能研究的喙壳类系统，在Barremian-Aptian界线上识别晚中生代喙壳类演化发展的界线，分析早白垩世连续时期壳物质结构的变化，阐明作者所描述的下白垩世沉积的六个剖面按层划分的物种组合的地层意义，并揭示了在古生物地理重建中使用这一群体的可能性。共描述2科7属37种，其中2属16种为新种。这篇文章对广泛的古生物学家、中生代动物群专家、生物地层学家和研究中生代沉积物的地质学家都是有用的。本研究提供了8张图版、58幅图、71篇参考文献。
A comprehensive report on Early Cretaceous Dagestan rhynchonellids is provided for the first time. It includes the rhynchonellid system based on detail morphofunctional studies, recognition of the boundary in the evolutionary development of Late Mesozoic rhynchonelloids at the Barremian-Aptian boundary, analysis of changes in shell matter structure during successive time periods of the Early Cretaceous, elucidation of stratigraphic importance of species assemblages allocated stratigraphically by layers to six sections of the Lower Cretaceous deposits described by the author, and revelation of possibilities of using this group in paleobiogeographic reconstructions. The study describes 37 species, 7 genera, and 2 families; 16 species and 2 genera are new. This paper is useful for a wide range of paleontologists, experts on the Mesozoic fauna, biostratigraphers, and geologists dealing with Mesozoic deposits. The study provides 8 plates, 58 figures, 71 references.