| New Genus and Species of Fossil Dragonflies （Insecta： Odonata） from the Yixian Formation of Northeastern China |
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| 作者姓名： | ZHANG Binglan REN Dong ZHOU Changqing PANG Hong |
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| 作者单位： | [1]State Key Laboratory of Biocontrol and Institute of Entomology, Sun Yat-Sen University, Guangzhou, Guangdong 510275 [2]College of Life Sciences, Capital Normal University, Beijing 100037 |
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| 基金项目： | 中国科学院资助项目;中山大学校科研和教改项目;北京市自然科学基金;北京市教委资助项目 |
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| 摘 要： | Two well-preserved fossil dragonflies from the Late Mesozoic Yixian Formation, Liaoning Province, China are described and assigned to a new genus, Sopholibellula gen. nov. in Araripelibellulidae Bechly, 1996, closely related to the type genus Araripelibellula. This new genus differs from AraripelibeUula in the following characters： origins of RP and MA distinctly separated at arculus in both pairs of wings; anal loop wider and shorter, with Y-shaped veins inside; MA and IR2 not zigzag; several small intercalary veins present in the postdiscoidal area of hindwing; cells smaller and much more dense, especially in the apex and hind margin; bigger in size. Structures, including head, abdomen and parts of legs, were first described in details of this family.
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| 关 键 词： | 化石 侏罗纪 白垩纪 中国 古动物 |
| 收稿时间： | 9/2/2005 12:00:00 AM |
| 修稿时间： | 2006-03-22 |
New Genus and Species of Fossil Dragonflies (Insecta: Odonata) from the Yixian Formation of Northeastern China |
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| Authors: | ZHANG;Binglan;REN;Dong;ZHOU;Changqing;PANG;Hong |
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| Abstract: | Two well-preserved fossil dragonflies from the Late Mesozoic Yixian Formation, Liaoning Province, China are described and assigned to a new genus, Sopholibellula gen. nov. in Araripelibellulidae Bechly, 1996, closely related to the type genus Araripelibellula. This new genus differs from Araripelibellula in the following characters: origins of RP and MA distinctly separated at arculus in both pairs of wings; anal loop wider and shorter, with Y-shaped veins inside; MA and IR2 not zigzag; several small intercalary veins present in the postdiscoidal area of hindwing; cells smaller and much more dense, especially in the apex and hind margin; bigger in size. Structures, including head, abdomen and parts of legs, were first described in details of this family. |
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| Keywords: | Odonata Anisoptera Araripelibellulidae new genus fossil Late Jurassic Early Cretaceous China |
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