| The Age and Character of the Yu'erhong Flora from Yumen, Gansu |
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| 作者姓名： | Shen Guanglong Wu Xiuyuan Wang Jun and Liu Huaqin |
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| 作者单位： | Shen Guanglong，Wu Xiuyuan，Wang Jun and Liu Huaqin Department of Geology，Northwest U niversity，Xi'an，Shaanxi Nanjing Institute of Geology and Palaeontology，Chinese Academy of Sciences，Nanjing，Jiangsu |
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| 基金项目： | This paper presents a part of the reseatch results of Project 49172068 supported by the National Natural Science Foundation of China |
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| 摘 要： | From a fresh field investigation, it has been ascertained that the Late Palaeozoic Yu'erhong (Yuernhung) flora from Yu'erhong, Yumen, Gansu, northwestern China, studied by Bohlin in 1971 includes plants from the Westphalian Yangfukou Formation and the Stephanian to Sakmarian Taiyuan Formation. The Yu'erhong flora from the Yanghukou Formation is dominated by Euramerican elements with a few elements of the Cathaysian flora. No Angarian elements have be found in this section for lack of Late Permian strata. The specimens studied by Bohlin might possibly come from the upper part of the Upper Permian at tne southeastern corner . of the Yu'erhong basin. Those fossils from different horizons and localities might be mixed with each other during collection ;so they fail to reflect the exact horizon of certain plant fossils.
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The Age and Character of the Yu'erhong Flora from Yumen, Gansu |
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| Authors: | Shen Guanglong Wu Xiuyuan Wang Jun and Liu Huaqin |
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| Institution: | Shen Guanglong,Wu Xiuyuan,Wang Jun and Liu Huaqin Department of Geology,Northwest U niversity,Xi'an,Shaanxi Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences,Nanjing,Jiangsu |
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| Abstract: | From a fresh field investigation, it has been ascertained that the Late Palaeozoic Yu'erhong (Yuernhung) flora from Yu'erhong, Yumen, Gansu, northwestern China, studied by Bohlin in 1971 includes plants from the Westphalian Yangfukou Formation and the Stephanian to Sakmarian Taiyuan Formation. The Yu'erhong flora from the Yanghukou Formation is dominated by Euramerican elements with a few elements of the Cathaysian flora. No Angarian elements have be found in this section for lack of Late Permian strata. The specimens studied by Bohlin might possibly come from the upper part of the Upper Permian at tne southeastern corner . of the Yu'erhong basin. Those fossils from different horizons and localities might be mixed with each other during collection ;so they fail to reflect the exact horizon of certain plant fossils. |
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| Keywords: | Yu'erhong flora Yanghukou Formation Taiyuan Formation Yumen Gansu |
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