2002: Advances in the study of non-marine Jurassic-Cretaceous biostratigraphicai boundary and candidate stratotype in Luanping basin,northern Hebei. Geological Bulletin of China, 21(3): 176-180.
    Citation: 2002: Advances in the study of non-marine Jurassic-Cretaceous biostratigraphicai boundary and candidate stratotype in Luanping basin,northern Hebei. Geological Bulletin of China, 21(3): 176-180.

    Advances in the study of non-marine Jurassic-Cretaceous biostratigraphicai boundary and candidate stratotype in Luanping basin,northern Hebei

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