An introductory report on the biodiversity of Middle Jurassic Phoenicopsis(Czekanowskiales) from the Ordos Basin, China

查看全文 作　　者：Chunlin [1,2]Sun;Yunfeng [1,2]Li;David [3]L.Dilcher;Hongshan [4]Wang;Tao [1,2]Li;Yuling [1,2]Na;Anping [1,2]Wang

机构地区：[1]Key Laboratory for Evolution of Past Life and Environment in Northeast Asia, Ministry of Education;[2]Research Center of Palaeontology and Stratigraphy,Jilin University;[3]Department of Geology, Indiana University;[4]Florida Museum of Natural History, University of Florida

出　　处：《Science Bulletin》索引2015年第60卷第21期,共8页

基　　金：supported by the National Natural Science Foundation of China(41172009);Specialized Research Fund for the Doctoral Program of Higher Education(2010061110034);China Geological Survey(1212011120149);Project‘‘111’’,China 摘　　要：Although the genus Phoenicopsis is the most common member of Czekanowskiales and is considered an indicative representative of the Middle Jurassic Coniopteris–Phoenicopsis assemblage in northern China, little was known about its taxonomy and biodiversity based upon the leaf cuticular structure. In this paper, three subgenera of the genus Phoenicopsis from the Middle Jurassic, Yan'an Formation of the Ordos Basin, China, Phoenicopsis(subg. Phoenicopsis)(Heer) Samylina, P.(subg. Windwardia)(Florin) Samylina and P.(subg. Culgoweria)(Florin) Samylina are identified based upon the leaf epidermal features for the first time. This discovery demonstrates that Phoenicopsis was quite diverse during the Middle Jurassic in northern China. Its biodiversity is significant for further understanding Middle Jurassic paleophytogeography and paleoclimatology of northern China. The current findings show that the three Phoenicopsis subgenera coexisted and flourished in the mixed zone(ecotone) between the Indo-Sinian Floristic Region and the Siberian Floristic Region as seasonal deciduous plants(trees or shrubs) during the Middle Jurassic. They were important elements in the Middle Jurassic deciduous gymnospermous forest community in warm temperate regions with seasonal temperature and precipitation variations. They are interpreted as growing on the hillsides and sloping fields along meandering streams, lakes and swamps in a vast sedimentary basin in a wet and warm environment. 关键词：鄂尔多斯盆地生物多样性植物组合中侏罗世中国北方落叶植物植物区系叶表皮结构

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An introductory report on the biodiversity of Middle Jurassic Phoenicopsis(Czekanowskiales) from the Ordos Basin, China

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