| Middle and Late Cambrian trilobite communities from Fenghuang (Dama) of western Hunan, China |
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| 作者姓名： | DUAN Ye Institute ofMesozoic Palaeontology of Western Liaoning Shenyang Normal University Shenyang Liaoning China |
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| 作者单位： | DUAN Ye Institute ofMesozoic Palaeontology of Western Liaoning，Shenyang Normal University，Shenyang 110034，Liaoning，China |
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| 摘 要： | Middle and Late Cambrian trilobite faunas from the Dama section in western Hunanare are composed of 63 genera and subgenera, 84 species, and two forms of gen. et sp. indetermined. Which include a mixture of cosmopolitan agnostoids and polymeroids. Three new species, Hardyoides damaensis ,Meringaspis damaensis and Rhyssomelopus (Rodtrifinis ) nitidus, are described by present author in 2004. Besides, Erixanium is recognised for the first time in study area, which is significant for biostratigraphical correlation of the Late Cambrian in the Austalo-Asia region. According to distribution regularity vertical, the Middle and Late Cambrian trilobites can be divided into 9 trilobite communities for the Dama section. Based on the trilobite communities analysis, the author concludes that from the east Mt. Lailong to Dama through Fenghuang, further east, reach in Chenxi.the palaeoenvironments were changed from a shallow-water of oxygen-rich (platform margin slope) into a deep-water of oxygen-poor setting (basin).
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Middle and Late Cambrian trilobite communities from Fenghuang (Dama) of western Hunan, China |
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| DUAN Ye Institute ofMesozoic Palaeontology of Western Liaoning,Shenyang Normal University,Shenyang ,Liaoning,China.Middle and Late Cambrian trilobite communities from Fenghuang (Dama) of western Hunan, China[J].Journal of Geoscientific Research in Northeast Asia,2005(Z1). |
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| Authors: | DUAN Ye Institute ofMesozoic Palaeontology of Western Liaoning Shenyang Normal University Shenyang Liaoning China |
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| Institution: | DUAN Ye Institute ofMesozoic Palaeontology of Western Liaoning,Shenyang Normal University,Shenyang 110034,Liaoning,China |
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| Abstract: | Middle and Late Cambrian trilobite faunas from the Dama section in western Hunanare are composed of 63 genera and subgenera, 84 species, and two forms of gen. et sp. indetermined. Which include a mixture of cosmopolitan agnostoids and polymeroids. Three new species, Hardyoides damaensis ,Meringaspis damaensis and Rhyssomelopus (Rodtrifinis ) nitidus, are described by present author in 2004. Besides, Erixanium is recognised for the first time in study area, which is significant for biostratigraphical correlation of the Late Cambrian in the Austalo-Asia region. According to distribution regularity vertical, the Middle and Late Cambrian trilobites can be divided into 9 trilobite communities for the Dama section. Based on the trilobite communities analysis, the author concludes that from the east Mt. Lailong to Dama through Fenghuang, further east, reach in Chenxi.the palaeoenvironments were changed from a shallow-water of oxygen-rich (platform margin slope) into a deep-water of oxygen-poor setting (basin). |
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| Keywords: | Cambrian trilobite community Fenghuang (Dama) Hunan China |
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