Holotype: RSMP2310.1

Locality: Herschel, southwestern Saskatchewan Province, Canada.

Horizon: Bearpaw Formation.

Biostratigraphy:

Age: Upper Campanian, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Skull, mandible, numerous vertebrae, ribs, and pectoral and pelvic girdles.