A new oofamily of dinosaur egg from the Upper Cretaceous of Tiantai Basin,Zhejiang Province,and its mechanism of eggshell formation

作     者：WANG Qiang 1,WANG XiaoLin 1*,ZHAO ZiKui 1 & JIANG YanGen 2 1 Key Laboratory of Evolutionary Systematics of Vertebrates,Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing 100044,China 2 Tiantai Bureau of Land and Resources of Zhejiang Province,Tiantai 317200,China 

出 版 物：《Science Bulletin》 (科学通报(英文版))

年 卷 期：2012年第Z2期

页      面：3740-3747页

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] 

基　　金：supported by the National Natural Science Foundation of China(40772017 and 41172018) the National Science Fund for Distinguished Young Scholars(40825005) the National Key Basic Research Program of China(2012CB821900) the Key Laboratory of Evolutionary Systematics of Vertebrates,IVPP,CAS (2011LESV004) 

主　　题：dinosaur egg stalicoolthids Upper Cretaceous Chichengshan Formation Tiantai Basin 

摘      要：Here we describe new types of dinosaur eggs found from the Late Cretaceous Chichengshan Formation in the Tiantai Basin,Zhejiang *** the basis of such characters as small spheroid or near-spheroid,columnar layer composed of three zones,the outer zone consisted of stalagmite-like or coralliform secondary shell units,we established two new oogenera,one new and one combination oospecies:Stalicoolithus shifengensis *** *** Coralloidoolithus shizuiwanensis *** *** addition,re-examination of the holotype of Shixingoolithus erbeni from the Upper Cretaceous Pingling Formation,Guangdong Province reveals that it was erroneously attributed to Spheroolithidae,and should be transferred to ***,we established a new oofamily:Stalicoolithidae *** represents a new model of dinosaur eggshell and thus sheds new light on the formation and evolution of amniotic eggshells.