Species: manchouensis ENDO & SHIKAMA, 1942
Etymology:

Holotype:

Locality: Yixian, Jehol mountainland, Manchoukuo, Liaoning Province, China.

Horizon: Horizon III, Upper Yixian Formation (Tsaotzushan Formation), Jehol Group.

Biostratigraphy: Psittacosaurus fauna, Liaoxiornis Avifauna.

Age: Lower Hautervian Stage, Uppermost Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Note: Orginally believed to be Late Jurassic.

Material: Shell and pelvic limb.

Referred material:

SHAO, YANG, LI, SU & ZHOU, 2017

PMOL-AR00007: A nearly complete juvenile specimen.

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Species: donghai MA, 1986
Etymology:

Holotype:

Locality: From a coalmine in Jixi, Heilongjiang Province, China.

Horizon: Higher horizon than the Jehol Group.

Biostratigraphy:

Age: Early Cretaceous.

Material: