Oogenus: Emydoolithus WANG, WANG, ZHAO, ZHANG, & JIANG, 2013
Etymology: Greek, Emyd, 'means a freshwater turtle', and Greek, oolithus, 'a form genus fuffix for fossil eggs.
ZHANG, & JIANG,
Etymology: In reference to the Laiyang City, where the fossil was found.
Holotype: IVPP V18544
Locality: Jingangkou, Laiyang, Shandong Province, China.
Horizon: Jingangkou Formation, Wangshi Group.
Age: Late Cretaceous.
Material: A nearly complete symmetrical elongate ellipitical egg.