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The Senonian Himenoura group is restudied in the type section in Amakusa-Kamishima and adjacent islets. A zonal subdivision is established in the group on the grounds of Inoceramus and ammonite specie...s. The zones run somewhat obliquely through the facies boundaries. From the evidence in the type area and at other localities the general remarks are given on the Himenoura group in regards to the Urakawa transgression, the development of the basin of sedimentation, the changes of sedimentary environments in space and time and the post-Himenoura crustal movements. Palaeontological notes are described on eight species of Inoceramus and ammonites, in which Inoceramus orientails nagaoi nom. nov. is proposed.続きを見る
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Ⅰ.Introduction Ⅱ.Stratigraphy of the Himenoura group Ⅲ.Zonation of the type Himenoura group Ⅳ.Notes on the Himenoura group outside the type area Ⅴ.Geological setting of the Himenoura group 6.Appendices 7.References
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