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[文献書誌] Ogasawara,K: "Paleozoogeographic significance of Mizuhopecten slodkewitschi Sinelnikova from the Miocene Shibiutan Formation,northern Hokkaido" Sci.Rep,lnst.Geosci,Univ Tsukuba,Sec.B.14. (1993)
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[文献書誌] Ogasawara,K: "Tropical molluscan association in the Middle Miocene marginal sea of the Japanese Islands:An example of molluscs from the Oyama Formation,Tsuruoka City,Northeast Honshu,Japan" Trans.Proc.Palaeont.Soc.Japan,N.S.no.167. 1224-1246 (1992)
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[文献書誌] Ogasawara,K: "Neogene of the Yatsuo area,Toyama Prefecture" 第5回環太平洋新第三系層序に関する国際会議及び1GCP-246国際討論会,巡検ガイドブック. 1-25 (1991)
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[文献書誌] 大上 和良: "脊梁山地東縁部に分布する飯岡層の地質年代と堆積環境" 中川久夫教授退官記念論文集. 223-234 (1991)
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[文献書誌] Ogasawara,K: "Neogene marine sequences and benthic foraminifers" 第4回底生有孔虫国際シンポジウム 地質巡検Cガイドブック. 1-17 (1990)
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[文献書誌] Ogasawara,K: "A new Miocene gastropod species co-occurred with Paleoparadoxia specimens from the Yanagawa Formation,Fukushima Prefecture,Northeast Honshu,Japan" Saito Ho-on Kai Mus.Nat.Hist,Res.Bull. no.58. 25-30 (1990)