A New Ceratopsian from the Upper Jurassic Houcheng Formation of Hebei, China

作     者：ZHAO Xijin CHENG Zhengwu XU Xing Peter J. MAKOVICKY 

作者机构：Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences 142 Xizhimenwai Street Beijing 100044 China Institute of Geology Chinese Academy of Geological Sciences 26 Baiwanzhuang Road Beijing 100037 China Department of Geology The Field Museum 1400 S Lake Shore Drive Chicago IL 60605 U.S.A. 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2006年第80卷第4期

页      面：467-473页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 

基　　金：supported by the National Geographic Society(7342-02 to PJM) U.S.National Science Foundation(EAR 0418648 to PJM) National Natural Science Foundation of China(40125006 to Xu Xing) Chinese Academy of Sciences,and The Field Museum 

主　　题：Houcheng Formation Jurassic Hebei Chaoyangsauridae Ceratopsia 

摘      要：A new ceratopsian taxon Xuanhuaceratops niei gen. et sp. nov. is erected based on four fragmentary specimens collected from the Late Jurassic Houcheng Formation, Hebei Province, China. Xuanhuaceratops shares a number of derived features with, and is closely related to, another probable Late Juarassic ceratopsian Chaoyangsaurus youngi, from which it differs in only possessing a single premaxlllary tooth as well as in details of quadrate and scapular morphology. We hypothesize that these two taxa represent a primitive lineage of Ceratopsia that is basal to the psittacosauridneoceratopsian diversity, and propose the name Chaoyangsauridae for it.