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The provincialism and assemblages of the eight fossil biotic groups of Jurassic andCretaceous in China (namely, conchostracans, ostracods, bivalves, charophytes, ammonoids, fora-minifers, brachiopods and pollen-spores) are briefly summarized in this paper, and this providesscientific basis for studying the stratigraphical province and classification of this period. 相似文献
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The stratigraphical provinces, subdivisions and correlations of the Early and MiddleJurassic, Late Jurassic, Early Cretaceous and Late Cretaceous are separately discussed accordingto their characteristics of palaeogeography, biogeography and sedimentation. The names forthe typical formations of each stratigraphical province or subprovince are also proposed inthis paper. 相似文献
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