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Eastern Asian endemic seed plant genera and their paleogeographic history throughout the Northern Hemisphere

查看全文 作  者:Steven R. [1]MANCHESTER;Zhi-Duan [2]CHEN;An-Ming [2]LU;Kazuhiko [3]UEMURA 高影响力作者 机构地区:[1]Florida Museum of Natural History, University of Florida, Gainesville, FL 32611-7800, USA;[2]State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;[3]National Museum of Nature and Science, Tokyo 169-0073, Japan高影响力机构 出  处:《Journal of Systematics and Evolution》索引2009年第47卷第1期,共42页高影响力期刊 基  金:supported in part by US National Science Foundation grants EAR 9220079,0174295;INT 0074295 to SRM;National Basic Research Program of China (973 Program No.2007CB411600);Chinese Academy of Sciences (KSCX2-YW-R-136) to CZD;in part by Research Project of the National Museum of Nature of Science (20077005);the Monbusho Grant-in-Aid for Scientific Research (17540446) for KU;supported through SRM's participation in the NSF (NESCent)-sponsored Phytogeography of the Northern Hemisphere Working Group 摘  要:We review the fossil history of seed plant genera that are now endemic to eastern Asia. Although the majority of eastern Asian endemic genera have no known fossil record at all, 54 genera, or about 9%, are reliably known from the fossil record. Most of these are woody (with two exceptions), and most are today either broadly East Asian, or more specifically confined to Sino-Japanese subcategory rather than being endemic to the Sino-Himalayan area. Of the 'eastern Asian endemic' genera so far known from the fossil record, the majority formerly occurred in Europe and/or North America, indicating that eastern Asia served as a late Tertiary or Quaternary refugium for taxa. Hence, many of these genera may have originated in other parts of the Northern Hemisphere and expanded their ranges across continents and former sea barriers when tectonic and climatic conditions al- lowed, leading to their arrival in eastern Asia. Although clear evidence for paleoendemism is provided by the gymnosperms Amentotaxus, Cathaya, Cephalotaxus, Cunninghamia, Cryptomeria, Glyptostrobus, Ginkgo, Ketel-eeria, Metasequoia, Nothotsuga, Pseudolarix, Sciadopitys, and Taiwania, and the angiosperms Cercidiphyllum, Choerospondias, Corylopsis, Craigia, Cyclocarya, Davidia, Dipelta, Decaisnea, Diplopanax, Dipteronia, Em-menopterys, Eucommia, Euscaphis, Hemiptelea, Hovenia, Koelreuteria, Paulownia, Phellodendron, Platycarya, Pteroceltis, Rehderodendron, Sargentodoxa, Schizophragma, Sinomenium, Tapiscia, Tetracentron, Toricellia, Trapella, and Trochodendron, we cannot rule out the possibility that neoendemism plays an important role especially for herbaceous taxa in the present-day flora of Asia, particularly in the Sino-Himalayan region. In addition to reviewing paleobotanical occurrences from the literature, we document newly recognized fossil occurrences that expand the geographic and stratigraphic ranges previously known for Dipelta, Pteroceltis, and Toricellia. 关 键 词:古植物学 植物地理学 白垩纪 亚洲东方
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