Locality: A private ranch in Corson County, South Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Dermal ossicles and cranial material.

PEREDA-SUBERBIOLA, 1992

Locality: Le Mas D'Azil Localities, Ariege Deparment, France.

Horizon: Gres de Labarre Formation.

Biostratigraphy:

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

Material:

CP B2, B1-: Dermal ossicles.