A New Rhamphorhynchid Pterosaur (Pterosauria) from the Middle Jurassic Tiaojishan Formation of Western Liaoning, China |
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Authors: | Junchang LÜ Xue BO |
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Institution: | 1 Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China; 2 Yizhou Museum, Yixian 121100, Liaoning Province, China and 1 Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China; 2 Yizhou Museum, Yixian 121100, Liaoning Province, China |
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Abstract: | A new Sordes-like pterosaur Jianchangopterus zhaoianus gen. et sp. nov. is erected based on a almost complete skeleton with skull preserved. It is characterized by the following characters: seven and six pairs of upper jaw and lower jaw teeth respectively; the development of a recess on maxilla; the evenness of the dental margin in lateral view; a distinct central ridge along dorsal surface of the mandibular symphysis; wing phalanx 4 with strongly curved shaft approximately 96% the length of the wing phalanx 1. The discovery of a Sordes-like pterosaur Jianchangopterus, and other taxa from the same formation indicates that pterosaurs reached great diversities during the Middle to Upper Jurassic period. |
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Keywords: | Scaphognathinae Jianchangopterus Tiaojishan Formation |
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