Lopingian mixed floras from Linxi Formation in Soron area,Inner Mongolia

查看全文 作　　者：ZHANG [1,2]Dejun;SUN [1,3]Yuewu;DING [1,2]Haisheng;YANG [1,2]Zhenyuan;TANG [2]Lijing

机构地区：[1]Research Center of Paleontology & Stratigraphy,Jilin University;[2]College of Earth Sciences,Jilin University;[3]Key Lab for Evolution of Past Life and Environment in Northeast Asia,Ministry of Education ( Jilin University)

出　　处：《Global Geology》索引2014年第17卷第2期,共11页

基　　金：Supported by China Geological Survey ( Grant Nos. 1212011120966,1212011121086);the Key Lab for Evolution of Past Life and Environment in NE Asia,Ministry of Education,China( Jilin Univ. ) 摘　　要：A lot of well-preserved plants from the Linxi Formation are collected in the Soron area,Inner Mongolia,consisting of 34 species of 16 genera. They are Late Permian in age. The flora is characterized by a lot of Angaran plants,such as Paracalamites,Comia,Rhachiphyllum,Iniopteris,Rufloria,etc. Some Cathaysian elements,such as Lobatannularia lingulata,L. multifolia,Fascipteris Cathaysiantus,F. densata,Taeniopteris szei,Cladophlebis liulinensis and C. permica,are also mixed within the present flora. This indicates that the Soron of Inner Mongolia was located in the sector between the Angaran and Cathysian floristic provinces in Lopingian. It is beneficial for depicting the location and the evolution of the Solenker--Xar Moron suture zone in the phytogeographic view. The transmigration of tropical and subtropical Cathaysian plants to the north indicates that the Paleoasian Ocean was closed during the late Permian along the suture zone. 关键词：内蒙古混合植物区系亚热带植物菌群古乐二叠纪末期晚二叠世

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Lopingian mixed floras from Linxi Formation in Soron area,Inner Mongolia

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