Protoceratops andrewsi DONG, et al, 1989

Locality: Bayan Mandahu, Urad Houqi, Inner Mongolia (Nei Mongolia), China.

Horizon: Djadochta Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Nests.

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“Protoceratops” CARPENTER & ALF, 1994/YOUNG, 1965

Locality: Jiangunmiao, China.

Horizon: Hongshaguan Formation.

Biostratigraphy:

Age: Maastrichtian Stage, Upper Senonian Stage, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Nests.

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Protoceratops HU, CHENG, PANG & FANG, 2001

Locality: Vicinity of Zhangying, Jiaoxian County adjacent to Zhucheng County, China.

Horizon: Wangshi Group.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Nest.