Heishanoolithus

Heishanoolithus
Temporal range: Lower Cretaceous
Eggshell classification
Basic shell type: Ornithoid
Morphotype: Ornithoid-ratite
Oofamily: Elongatoolithidae
Oogenus: Heishanoolithus
Zhao and Zhao 1999
Oospecies
  • H. changii Zhao and Zhao 1999 (type)

Heishanoolithus is an oogenus of Elongatoolithid fossil egg from the Shahai Formation in Liaoning. It is known only from seven eggshell fragments. It is most notable for having a very thin eggshell (1.2-1.3 mm thick), the dense covering of nodes on the eggshell surface, and for its relatively thin mammilary layer (making up only one eighth of the eggshell thickness).[1] While no remains of Heishanoolithus have been associated with skeletal remains, strong evidence links Elongatoolithid eggs to Oviraptorosaurs.[2]

References

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