Species: acutosquameus PARKS, 1924
Holotype: ROM 784 (formerly ROM 4929):
Locality: Sec. 4, Tp. 21, R11W of 4th Mer., Red Deer River, Steveille, Dinosaur Provincial Park, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material: 3 fragmentary teeth, fragmentary skull, mandible, ilium, posterior
axial skeleton with tail club, all of one hind limb including pes, armour,
with skin impressions.