| New fossil eccoptarthrids (Coleoptera: Curculionoidea) from the Yixian Formation of western Liaoning, China |
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| 引用本文： | LIU Ming & REN Dong College of Life Science,Capital Normal University,Beijing 100037,China. New fossil eccoptarthrids (Coleoptera: Curculionoidea) from the Yixian Formation of western Liaoning, China[J]. 中国科学D辑(英文版), 2007, 50(5): 641-648. DOI: 10.1007/s11430-007-0030-z |
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| 作者姓名： | LIU Ming & REN Dong College of Life Science Capital Normal University Beijing 100037 China |
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| 作者单位： | LIU Ming & REN Dong College of Life Science，Capital Normal University，Beijing 100037，China |
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| 摘 要： | One new genus and three new species of the weevil family Eccoptarthridae (Curculionoidea), Leptocar polychaetus gen. et sp. nov., Abrocar macilentus sp. nov., Cretonanophyes punctatus sp. nov., are described and illustrated. They pertain to the Upper Jurassic or Lower Cretaceous Yixian Formation of western Liaoning Province, China. The host plants to the living eccoptarthrids and the floras in Yixian Formation indicate that those archaic eccoptarthrids possibly lived on conifers with a phylogenetic closeness to Cupressaceae. Besides, the early diversification of eccoptarthrids is discussed: origi- nated in Central or East Asia in the Late Jurassic, spread into Western Europe and South America during the Early Cretaceous, underwent a dramatic decline after the Early Cretaceous which likely was caused by competitive pressure and the displacement of their host plants.
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| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2006-11-03 |
New fossil eccoptarthrids (Coleoptera: Curculionoidea) from the Yixian Formation of western Liaoning,China |
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| Liu Ming,Ren Dong. New fossil eccoptarthrids (Coleoptera: Curculionoidea) from the Yixian Formation of western Liaoning,China[J]. Science in China(Earth Sciences), 2007, 50(5): 641-648. DOI: 10.1007/s11430-007-0030-z |
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| Authors: | Liu Ming Ren Dong |
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| Affiliation: | College of Life Science, Capital Normal University, Beijing 100037, China |
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| Abstract: | One new genus and three new species of the weevil family Eccoptarthridae (Curculionoidea), Leptocar polychaetus gen. et sp. nov., Abrocar macilentus sp. nov., Cretonanophyes punctatus sp. nov., are described and illustrated. They pertain to the Upper Jurassic or Lower Cretaceous Yixian Formation of western Liaoning Province, China. The host plants to the living eccoptarthrids and the floras in Yixian Formation indicate that those archaic eccoptarthrids possibly lived on conifers with a phylogenetic closeness to Cupressaceae. Besides, the early diversification of eccoptarthrids is discussed: origi- nated in Central or East Asia in the Late Jurassic, spread into Western Europe and South America during the Early Cretaceous, underwent a dramatic decline after the Early Cretaceous which likely was caused by competitive pressure and the displacement of their host plants. |
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| Keywords: | fossil weevil Eccoptarthridae new taxa Late Jurassic Early Cretaceous Yixian Formation Liaoning |
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