Oviraptorosaurian Eggs (Dinosauria) with Embryonic Skeletons Discovered for the First Time in China

作     者：Yen-nien CHENG JI Qiang Xiao-chun WU Hsi-yin SHAN 

作者机构：Museum of Natural Science 1 Kuan Chien RD. Taichung Taiwan 40453 China Institute of Geology Chinese Academy of Geological Sciences 26 Baiwanzhuang Road Beijing 100037 China Canadian Museum of Nature P.O. Box 3443 STN ＇D＇ Ottawa ON KIP 6P4 Canada 

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

年 卷 期：2008年第82卷第6期

页      面：1089-1094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 research grants from the NMNS and the National Science Council of RO China(NSC 96-2116-M-178-001) to Cheng Y.-N the Ministry of Land and Resources,the Ministry of Science and Technology(973 Project,2006CB701405) and China Geological Survey for support supported by the NMNS for his sabbatical stay and grants from Canadian Museum of Nature,Canada 

主　　题：oviraptorosaurian Elongatoolithidae Macroolithus embryonic skeleton Upper Cretaceous Jiangxi 

摘      要：Two elongatoolithid dinosaur eggs from the Upper Cretaceous of Ganzhou, Jiangxi Province and the embryonic skeletons they bear are described. They represent the first oviraptorosaurian eggs with embryonic skeletons in China and provide the first example that an oospecies can be correlated to certain dinosaur taxon/taxa. The two eggs are the same as the pair of the eggs inside a female oviraptorosaurian pelvis from the same horizon of the same area in both macro- and micro-structures of the egg shells, and can he referred to the oospecies, Macroolithus yaotunensis Zhao, 1975. The morphology of the preserved part of the embryonic skeletons indicates that they may have been laid by an oviraptorid, Heyuannia huangi from Guangdong Province or a closely related oviraptorosaurian, which may have been lived in the Ganzhou area too in the Late Cretaceous. The embryonic skeletons of the two eggs are not in the same developing stage. In one of the eggs, the postzygapophysis of the preserved vertebrae are well ossified, indicating that it was just hatched.