A New Rhamphorhynchid Pterosaur(Pterosauria) from the Middle Jurassic Tiaojishan Formation of Western Liaoning,China  

作　　者：Junchang Lü Xue BO 

机构地区：[1]Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China [2]Yizhou Museum, Yixian 121100, Liaoning Province, China

出　　处：《Acta Geologica Sinica(English Edition)》2011年第5期977-983,共7页地质学报(英文版)

基　　金：supported by grants from the Basic Outlay of Scientific Research Work from the Ministry of Science and Technology(2011-SYS-02);the Natural Science Foundation of China(90914003;40872017)

摘　　要：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.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.

关 键 词：Scaphognathinae Jianchangopterus Tiaojishan Formation 

分 类 号：Q915[天文地球—古生物学与地层学]