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

作　　者：Frederic M. B. JACQUES GUO Shuang-Xing 

机构地区：[1]Museum National d＇Histoire Naturelle D~partement Histoire de la Terre, CP 38 UMR 5143 - USM 0203, 8 rue Buffon, 75231 Pads Cedex 05, France [2]Nanjmg Institute of Geology and Palaeontology, the Chinese Academy of Sciences, Nanjing 210008, China [3]Kunming lnstitute of Botany, the Chinese Academy of Sciences, Ktmming 650204, China

出　　处：《植物分类学报》2007年第4期576-582,共7页Acta Phytotaxonomica Sinica

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.

关 键 词：防已科 始新世 四川 群系 新种 植物 化石 果实 

分 类 号：Q949.746.9[生物学—植物学]