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Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy >
Vol.XX, No.4 >

Revisions of Tertiary Acer from East Asia

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タイトル: Revisions of Tertiary Acer from East Asia
著者: Tanai, Toshimasa 著作を一覧する
発行日: 1983年11月
出版者: 北海道大学 = Hokkaido University
誌名: 北海道大学理学部紀要 = Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy
巻: 20
号: 4
開始ページ: 291
終了ページ: 390
抄録: Although a number of Acer species were recorded in the Tertiary of East Asia, their nomenclature and systematics have been considerably confused. Examination of previously-described and some undescribed specimens indicates that 35 species including five new species are designated with certain modern realationships in East Asia. Beside them six doubtful species of Acer are lacking in the definite systematic indications, and there are many specimens which are too incomplete to assign their modern relationships. Thirty-five well-defined species are included in 17 sections, of which three sections have no living species in East Asia. Considering the stratigraphic range of each species together with past and present distribution, the phylogenetic history of Acer in East Asia is brieafly discussed. Three older lineages, the section Spicata, Rubra and Campestria, are confirmed. Other sections, excepting for Distyla, are rather young; most of them probably evolved from these three stocks, and some migrated from North America by long-distance dispersal.
資料タイプ: bulletin (article)
出現コレクション:Vol.XX, No.4


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