Species: formosus LEIDY, 1856
Etymology:

Referred material:

CURRIE, 1985

Locality: E 1/2, sec. 28, tp. 21, rge. 10, W 4th mer., 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:

Number: No t given: Frontals, parietals, right postorbital, basioccipital.
Note: Furcula.