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Volume 44, Issue 523
Displaying 1-7 of 7 articles from this issue
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Ken-ichi Sugi1937 Volume 44 Issue 523 Pages 255-261
Published: 1937
Released on J-STAGE: April 11, 2008
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[in Japanese]1937 Volume 44 Issue 523 Pages 262-284
Published: 1937
Released on J-STAGE: April 11, 2008
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[in Japanese]1937 Volume 44 Issue 523 Pages 285-303
Published: 1937
Released on J-STAGE: April 11, 2008
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[in Japanese]1937 Volume 44 Issue 523 Pages 304-305
Published: 1937
Released on J-STAGE: April 11, 2008
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Hisakatsu Yabe, Kiyoshi Asano1937 Volume 44 Issue 523 Pages 326-328
Published: 1937
Released on J-STAGE: April 11, 2008
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Kiyoshi Asano, Masayoshi Nakamura1937 Volume 44 Issue 523 Pages 329-336
Published: 1937
Released on J-STAGE: April 11, 2008
JOURNAL FREE ACCESSA study of various collections of forminifera now stored in the collection of the Institute of Geology and Palaeontology, Tohoku Imperial University, Sendai, Japan, has rendered possible the review of the Japanese species of Cassidulina, both fossil and recent., There are 12 species belonging to the genus Cassidulina in Japan; among them 4 species, namely, C., japonica n., sp., C., yabei n., sp., C., setanaensis n., sp., and C., sublimbata n., sp., are distributed only in northern Japan, both as recent and fossil, and are not known from the Pacific side of Japan., On the contrary, the other 8 species, namely, C., subglobosa BRADY, C., subglobosa parva n., subsp., C, subglobosa depressa n., subsp., C., sagamienses n., sp., C., kadusaensis n., sp., C., orientale CUSHMAN, C., pacifica CUSHMAN and C., laevigata D'ORBIGNY (?), occur only in the recent or fossil materials from the Pacific side and not in those from the Japan Sea side., The distribution of these interesting forms are the subject on this article and descriptions of the new species or subspecies will appear in another article., The writers here propose the following two different provinces of the marine Neogene from the view point of distribution of Cassidulina., 1) Cassidulina provinece of the Japan Sea type: This includes the Neogene formations in the prefectures of Aomori, Akita, Niigata, Toyama, Ishikawa and Hokkaido., 2) Cassidulina province of the Pacific type: This includes the Neogene formations of Boso and Miura Peninsulas, the Kakegawa District and Aki-gun in Koti prefecture., The former province seems to be closely related to the Neogene Oil-field of Japan and it is noteworthy that the allied species are commonly found in the Plio-Pleistocene of California.,View full abstractDownload PDF (622K) -
Teiichi Kobayashi1937 Volume 44 Issue 523 Pages 337-340
Published: 1937
Released on J-STAGE: April 11, 2008
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