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Palaeoskapha sichuanensis gen. et sp. nov. (Menispermaceae) from the Eocene Relu Formation in western Sichuan, West China 被引量：4

Palaeoskapha sichuanensis gen. et sp. nov. (Menispermaceae) from the Eocene Relu Formation in western Sichuan, West China
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摘要 Palaeoskapha sichuanensis gen. et sp. nov. of Menispermaceae is described here for the first time based on a well preserved fossil fruit. The specimen was found in the Relu Formation of western Sichuan, West China. The specimen, straight, boat-shaped endocarp with large ventral condyle, clearly belongs to the tribe Tinosporeae. The wide aperture of the double condyle, combined with a whole shape not deeply invaginated, indicates a genus different from what was already known to science for this tribe. This fossil widens the distribution of the tribe during Eocene from North America and Europe to Asia, where it was formerly unknown. Palaeoskapha sichuanensis gen. et sp. nov. of Menispermaceae is described here for the first time based on a well preserved fossil fruit. The specimen was found in the Relu Formation of western Sichuan, West China. The specimen, straight, boat-shaped endocarp with large ventral condyle, clearly belongs to the tribe Tinosporeae. The wide aperture of the double condyle, combined with a whole shape not deeply invaginated, indicates a genus different from what was already known to science for this tribe. This fossil widens the distribution of the tribe during Eocene from North America and Europe to Asia, where it was formerly unknown.
作者 Frederic M. B. JACQUES GUO Shuang-Xing
机构地区 Museum National d＇Histoire Naturelle D~partement Histoire de la Terre Nanjmg Institute of Geology and Palaeontology Kunming lnstitute of Botany
出处 《植物分类学报》 CSCD 北大核心 2007年第4期576-582,共7页 Acta Phytotaxonomica Sinica
关键词 防已科 始新世 四川 群系 新种 植物 化石 果实 Eocene, Menispermaceae, Palaeoskapha sichuanensis sp. nov., Relu Formation,Sichuan.
分类号 Q949.746.9 [生物学—植物学]
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参考文献20

  • 1Brown R W.1962.Paleocene floras of the Rocky Mountains and great Plains.U.S.Geological Survey Professional Paper 375:1-119,69 pls.
  • 2Crane P R,Manchester S R,Dilcher D L.1991.Reproductive and vegetative structure of Nordenskioldia (Trochodendraceae) a vesselless dicotyledon from the Tertiary of the Northern Hemisphere.American Journal of Botany 78:1311-1334.
  • 3Geyler H T.1878.Ueber Fossile Pflanzen von Borneo.Paleontographica Supplement 3 (2):59-91.
  • 4Guo S-X.1986.Floral character of Eocene Relu Formation and history of Eucalyptus from Litang of Sichuan.Exploration of Hengduan Mountain area (Ⅱ).Beijing:Beijing Publishing House of Sciences and Technology.69-73.(in Chinese and English summary).
  • 5Guo S-X,Sun Z-H,Li H-M,Dou Y-W.1984.Paleocene megafossil flora from Altai of Xinjiang.Bulletin of Nanjing Institute of Geolology & Palaeontology,Academia Sinica 8:119-146,8 pls.
  • 6Jacques F M B,De Franceschi D.2005.Endocarps of Menispermaceae from Le Quesnoy outcrop (Sparnacian facies,Lower Eocene,Paris Basin).Review of Palaeobotany and Palynology 135:61-70.
  • 7Kessler P J A.1993.Menispermaceae.In:Kubitzki K,Rhower J G,Bittrich V eds.The Families and Genera of Vascular Plants.Berlin:Springer.2:402-418.
  • 8Manchester S R.1994.Fruits and Seeds of Middle Eocene Nut Beds Flora,Clarno Formation Oregon.Palaeontographica Americana 58:1-205.
  • 9Manchester S R,Chen Z-D,Geng B-Y,Tao J-R.2005.Middle Eocene flora of Huadian,Jilin Province,Northeastern China.Acta Paleobotanica 45 (1):3-26.
  • 10Manchester S R,Crane P R,Dilcher D L.1991.Nordenskioldia and Trochodendron (Trochodendraceae) from the Miocene of Northwestern North America.Botanical Gazette 152:357-368.

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植物分类学报
2007年 第4期

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