Species: altispinus BROWN, 1913
Etymology:
Paratype:
AMNH 5217
Locality: Thirty feet above river at Tolman Ferry, Red Deer River, Alberta Province, Canada.
Horizon: Five-hundred? feet below top of formation, Horseshoe Canyon Formation, Edmonton Group.
Biostratigraphy:
Age: Edmontonian age, lower Maastrichtian Stage, Upper Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material: Sacrum, last 10 dorsal vertebrae, 9 ribs, left ilium, right pubis,
left femur, left tibia, right and left fibulae, 4 metatarsals, 5 phalanges
and section of epidermis.