Species: canadensis (LAMBE, 1902) LAMBE, 1915
Etymology:
Referred material :
TYSON, 1977, 1981/DANIS, 1986
Locality: Dinosaur Provincial Park, 2 miles southeast and 1 mile east of the mouth of Sand Creek, Red Deer River, 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.
Horizon: Dinosaur Park Formation, (old Judith River Formation), Campanian, Late Cretaceous.
Material:
UAVP 40: Nearly complete skull.
Note: Paleopathology, extra fontanelles in the neck frill due to resorption? (TYSON, 1977, 1981)