Mechanism on bipolar distribution of Permian brachiopods |
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| Authors: | Chengwen WANG Songmei ZHANGCollege of Earth Sciences Jilin University Changchun ChinaCollege of Resources Science & Technology Beijing Normal University Beijing China |
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| Institution: | Chengwen WANG1, Songmei ZHANG21.College of Earth Sciences,Jilin University,Changchun 130026,China2.College of Resources Science & Technology,Beijing Normal University,Beijing 100875,China |
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| Abstract: | By reasearch on geographic distribution,nine genera in bipolar distribution are selected from Permian brachiopods.These taxa originated from middle-high latitude areas in the boreal realm,of which five genera were derived from Late Carboniferous,and other four genera originated from Permian.They were all in bipolar distribution during some different stages in Permian.Specific diversity for each genus was high in the boreal realm,whereas in the Gondwana realm was very low.Perdurability was long in the boreal... |
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| Keywords: | Permian brachiopod bipolar distribution mechanism |
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