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[文献書誌] 鈴木三男: "日本の中生代の双子葉材化石に見られる材形質の特徴(予報)" 日本植物分類学会報. 11. 1-12 (1995)
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[文献書誌] Nishida,M.and H.Nishida: "Pinoid woods with resin canals from the Upper Cretaceous of Hokkaido and Saghalien." J.Plant Res.108. 161-170 (1995)
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[文献書誌] Nishida,M.,H.Nishida,A.Yoshida and K.Kaiho: "Piceoxylon pseudoscleromedullosum sp.nov.from the Upper Maastrichtian of Hokkaido." Res.Inst.Evolut.Biol.Sci.Rep.8. 11-18 (1995)
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[文献書誌] Nishida,M.,T.Ohsawa,H.Nishida,A.Toshida and Y.Kanie: "A permineralized magnolialean fructification from the Upper Cretaceous of Hokkaido,Japan." Res.Inst.Evoult.Biol.Sci.Rep.8. 19-30 (1996)
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[文献書誌] Saiki,K.: "Pinus mutoi(Pinaceae)a new species of permineralized seed cone from the Upper Cretaceous of Hokkaido,Japan." American Journal of Botany. (in press). (1996)