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Ufadendron elongatum sp. nov., an Angaran Lycopsid from the Upper Permian of Inner Mongolia, China

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Tang Zhen 1,2   Zhang Yi 3,4 *   Naugolnykh Serge V 5,6   Zheng Changqing 1   Shi Lu 2   Qin Tao 2   Huang Junhao 3  
文摘 A new species Ufadendron elongatum sp. nov., attributed to the family Tomiodendraceae Naugolnykh, is represented by two well-preserved stems in the collection under study. This new species was recently discovered from the Upper Permian Linxi Formation in the Jalaid locality, the Inner Mongolia Autonomous region, China. The genus Ufadendron is characterized as having the long fusiform leaf cushions, with small and rounded leaf scar containing a central point-like scar which is situated at the upper part of leaf cushion; the infrafoliar bladder of fusiform shape positioned in the middle part of leaf cushion; the wings and heel well-developed in the lateral parts and the lower part of leaf cushion, respectively. The new species is different from the type species U. ufaense (Naugolnykh 2014) collected from the Lower Permian of the Cis-Urals, western limits of Angaraland, in the elongated leaf cushion and in the well-pronounced heel. It should be noted, that a vascular bundle (conductive strand) occupied the middle part of the central point-like scar. So far, only 5 genera of Angaran elements among lycopsids have been discovered in the region geographically belonging to Angaran Realm (Phytogeoprovince) in China. The new species U. elongatum not only enlarges our knowledge on the taxonomy of Tomiodendraceae lycopsids, and also provides an opportunity to understand the difference between Angaran and Cathaysian floras in paleoclimatic context.
来源 Journal of Earth Science ,2020,31(1):1-8 【核心库】
DOI 10.1007/s12583-019-1230-0
关键词 Ufadendron ; Linxi Formation ; Upper Permian ; Angaran lycopsids ; China
地址

1. College of Earth Sciences, Jilin University, Changchun, 130061  

2. Shenyang Center of Geological Survey, China Geological Survey, Shenyang, 110034  

3. College of Paleontology, Shenyang Normal University, Shenyang, 110034  

4. Key Laboratory for Evolution of Past Life in Northeast Asia, Ministry of Natural Resources, Key Laboratory for Evolution of Past Life in Northeast Asia, Ministry of Natural Resources, Shenyang, 110034  

5. Geological Institute, Russian Academy of Sciences, Russia, Moscow, 119017  

6. Kazan Federal University, Russia, Kazan, 420000

语种 英文
文献类型 研究性论文
ISSN 1674-487X
学科 植物学
基金 supported by the Geological Survey of China ;  国家自然科学基金 ;  the Project 111 of China ;  the Doctoral Fund of Shenyang Normal University ;  supported by the State Program (Geological Institute, Russian Acad. Sci.) ;  the Russian Government to support the Program of Competitive Growth of Kazan Federal University among World's Leading Academic Centers
文献收藏号 CSCD:6655394

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