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[文献書誌] NISHIDA,Harufumi et al.: "Petrified plants from the Cretaceous of the Kwanto Mountains,Central Japan 3.A polyxylic cycadean trunk,Sanchucycas gigantea gen.et sp.nov." Botanical Magazine,Tokyo.104. 191-205 (1991)
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[文献書誌] NISHIDA,Harufumi et al.: "Use of fluorescent microscapy in defining a small liguleーlike ovuliferous scale of a permineralized Taxodiaceous cone from the Upper Cretaceous of Hokkaido,Japan." Botanical Magazine,Tokyo.104. 231-234 (1991)
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[文献書誌] NISHIDA,Harufumi: "Diversity and significance of Late Cretaceous permineralized plant remains from Hokkaido." Botanical Magazine,Tokyo.104. 253-273 (1991)
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[文献書誌] NISHIDA,Makoto et al.: "Anatomy and affinities of the petrified plants from the Tertiary of Chile VI." Botanical Magazine,Tokyo. 103. 255-268 (1990)
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[文献書誌] NISHIDA,Makoto et al.: "Structure and affinities of the petrified plants from the Upper Cretaceous of Hokkaido VI.Yezosequoia shimanukii gen.et sp.nov.,a petrified Taxodiaceous cone from Hokkaido." 植物研究雑誌. 66. 280-291 (1991)
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[文献書誌] NISHIDA,Makoto et al.: "Structure and affinities of the petrified plants from the Cretaceous of northern Japan and SaghalienVIII.Parataiwania nihongii gen.et sp.nov.,a petrified Taxodiaceous cone from the Up.Cretaceous of Hokkaido." 植物研究雑誌. 67. 1-9 (1992)
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[文献書誌] OHSAWA,Takeshi et al.: "Structure and affinities of petrified plants from the Cretaceous of northern Japan and Saghalien VII.A petrified pinaceous cone from the Upper Cretaceous of Hokkaido." 植物研究雑誌. 66. 356-368 (1991)
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[文献書誌] OHSAWA,Takeshi et al.: "Structure and affinities of the petrified plants from the Cretaceous of northern Japan and Saghalien IX.A petrified cone of Sciadopitys from the Upper Cretaceous of Hokkaido." 植物研究雑誌. 39. 97-105 (1991)
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[文献書誌] OHSAWA,Takeshi et al.: "Structure and affinities of the petrified plants from the Cretaceous of northern Japan and Saghalien X.Two Sequoiaーlike cones from the Upper Cretaceous of Hokkaido." 植物研究雑誌. 67. (1992)
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[文献書誌] OHSAWA,Takeshi et al.: "Structure and affinities of the petrified plants from the Cretaceous of northern Japan and Saghalien XI.A petrified cupressoid cone from the Upper Cretaceous of Hokkaido." Botanical Magazine,Tokyo.105. (1992)
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[文献書誌] STOCKEY,Ruth et al.: "Structure and diversity of the woody conifer seedlingーlike structures from the Upper Cretaceous of Hokkaido." Botanical Gazette. 151. 252-262 (1990)
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[文献書誌] STOCKEY,Ruth et al.: "Upper Cretaceous cones from Hokkaido:Araucaria nihongii sp.nov." Review of Palaeobotany and Palynology. (1992)
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[文献書誌] 西田 治文: "キカデオイデアの類の花の構造" 日本植物分類学会報. 8(4). 99-109 (1991)
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[文献書誌] 西田 誠 編著: "植物と菌の系統と進化" (財)放送教育振興会, 189 (1991)