Species: maximus BROWN, 1916
Etymology:

Referred material:

Locality: Quarry 4, Dinosaur Provincial Park, Alberta Province, Canada.

Horizon: Dinosaur Park Formation, upper Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.

Material:

ROM 787 (Old GSC 4971[part at Museo La Plata, Argentina as 79-XI-23-1]): Skull and skeleton.
Note: Paleopathology, 6 dorsal ribs broken in a near straight line about ¾’s the way distal to the rib head.