Chinese Science Bulletin

, Volume 57, Issue 28–29, pp 3740–3747 | Cite as

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

  • Qiang Wang
  • XiaoLin WangEmail author
  • ZiKui Zhao
  • YanGen Jiang
Open Access
Article Progress of Projects Supported by NSFC Geology


Here we describe new types of dinosaur eggs found from the Late Cretaceous Chichengshan Formation in the Tiantai Basin, Zhejiang Province. On 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 oogen. et oosp. nov. and Coralloidoolithus shizuiwanensis oogen. et comb. nov. In 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 stalicoolithid. Consequently, we established a new oofamily: Stalicoolithidae oofam. nov. Stalicoolthids represents a new model of dinosaur eggshell and thus sheds new light on the formation and evolution of amniotic eggshells.


dinosaur egg stalicoolthids Upper Cretaceous Chichengshan Formation Tiantai Basin 


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Copyright information

© The Author(s) 2012

Authors and Affiliations

  • Qiang Wang
    • 1
  • XiaoLin Wang
    • 1
    Email author
  • ZiKui Zhao
    • 1
  • YanGen Jiang
    • 2
  1. 1.Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijingChina
  2. 2.Tiantai Bureau of Land and Resources of Zhejiang ProvinceTiantaiChina

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