Discovery of Cathaysiodendron Lee from the Early Carboniferous of Jingyuan,Gansu,western China  

作　　者：WANGJun WUXiuyuan 

机构地区：[1]NanjingInstituteofGeologyandPalaeontology,ChineseAcademyofSciences,Nanjing210008,China

出　　处：《Progress in Natural Science:Materials International》2004年第10期903-906,共4页自然科学进展·国际材料（英文版）

基　　金：SupportedbyChineseAcademyofSciences(KZCX2SW130),andtheNationalNaturalScienceFoundationofChina(GrantNo.40102002)

摘　　要：As one of the representative members of the Late Palaeozoic Cathaysian flora,Cathaysiodendron has been previously recorded from the Early Permian Taiyuan and Shanxi Formations in north China.The species of Cathaysiodendron presented here are from the lower member of Chouniugou Formation of Ciyao,Jingyuan,Gansu.The overlying marine beds yield fusulinids that are of Visean age in western Europe and conodonts of the Datang Stage in south China,so that the age of the bed containing Cathaysiodendron as Visean,Early Carboniferous,is well constrained.Such a record of Cathaysiodendron is significant in terms of Carboniferous phyto-geography and the evolution of the Cathaysian Lepidophytes.A new species,Cathaysiodendron jingyuanense Wang&Wu sp.nov.is described and a second one mentioned.As one of the representative members of the Late Palaeozoic Cathaysian flora,Cathaysiodendron has been previously recorded from the Early Permian Taiyuan and Shanxi Formations in north China.The species of Cathaysiodendron presented here are from the lower member of Chouniugou Formation of Ciyao,Jingyuan,Gansu.The overlying marine beds yield fusulinids that are of Visean age in western Europe and conodonts of the Datang Stage in south China,so that the age of the bed containing Cathaysiodendron as Visean,Early Carboniferous,is well constrained.Such a record of Cathaysiodendron is significant in terms of Carboniferous phyto-geography and the evolution of the Cathaysian Lepidophytes.A new species,Cathaysiodendron jingyuanense Wang&Wu sp.nov.is described and a second one mentioned.

关 键 词：Cathaysiodendron Early Carboniferous VISEAN Cathaysian flora 

分 类 号：Q948.15[生物学—植物学]