| 记辽宁一新翼龙化石（喙嘴龙亚目） |
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| 引用本文： | 姬书安,季强.记辽宁一新翼龙化石（喙嘴龙亚目）[J].地质学刊,1998,22(4):199-206. |
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| 作者姓名： | 姬书安 季强 |
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| 作者单位： | 中国地质博物馆 |
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| 基金项目： | 国家杰出青年科学基金,地质矿产部重点项目 |
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| 摘 要： | 记述了辽宁北票四合屯炒米甸子组中一新翼龙化石，该翼龙个体极小，两翼展开仅约４０ｃｍ。化石具有同形齿、长尾、极短的翼掌骨和非常发育的后肢第Ⅴ趾等特征，因而无疑可归入喙嘴龙亚目喙嘴龙科（Ｒｈａｍｐｈｏｒｈｙｎｃｈｉｄａｅ），并代表一新属种弯齿树翼龙（Ｄｅｎｄｒｏｒｈｙｎｃｈｕｓｃｕｒｖｉｄｅｎ－ｔａｔｕｓｇｅｎ．ｅｔｓｐ．ｎｏｖ．）。该化石是我国及东亚晚侏罗世喙嘴龙类翼龙的首次记录，它的发现有力地表明包括中华龙鸟和孔子鸟在内的辽西四合屯化石层的地质时代应为晚侏罗世。
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| 关 键 词： | 晚侏罗世 喙嘴龙科 树翼龙（新属） 辽宁北票 |
A New Fossil Pterosaur(Rhamphorhynchoidea) from Liaoning |
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| Ji Shuan Ji QiangNational Geological Museum of Chin,Beijing.A New Fossil Pterosaur(Rhamphorhynchoidea) from Liaoning[J].Jiangsu Geology,1998,22(4):199-206. |
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| Authors: | Ji Shuan Ji QiangNational Geological Museum of Chin Beijing |
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| Institution: | Ji Shuan Ji QiangNational Geological Museum of China,Beijing,100034 |
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| Abstract: | Dendrorhynchus curvidentatus gen.et sp.nov.,the newly uncovered fossil pterosaur from Sihetun area(Beipiao City,western Liaoning Province) can be placed within the family Rhamphorhynchidae undoubtedly by the homodont teeth,long tail, extremely short wing metacarpal and well developed phalanges of hindlimb digit V. It differs from Dorygnathus, Scaphognathus and Sordes in the first and second wing fingers longer than the radius, from Campylognathoides in the first wing finger longer than the second one. This small flying animal, whose wing span is about 40cm, may be also distinguished from Rhamphorhynchus in its less developed delto pectoral process of humerus, relatively shorter wing fingers and much longer foot digit V. The new genus represents the first record of the Late Jurassic Rhamphorhynchoidea in China and in East Asia. Moreover, the discovery of Dendrorhynchus further indicates the geological age of the Chaomidianzi Formation to be the latest Jurassic, from which abundant fossil vertebrates including Sinosauropteryx and Confuciusornis were also discovered. |
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| Keywords: | Late Jurassic Rhamphorhynchidae Dendrorhynchus gen nov Beipiao Liaoning |
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