Species: torosus RUSSELL, 1970
Etymolog

Referred material:

VARRICCHIO, 1999, 2001

Locality: Old Trail Museum Locality L-6, Bob’s Tuesday Site, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

OTM 200: Several teeth, dentary, splenial, 30 vertebrae representing all regions (cervical, dorsal, sacral, and caudal), several ribs and chevrons, and most of the pelvis, fused pubes, portions of both ilia and ischium).
Note: Gut contents OTM 201 (hadrosaur) with acid-etched 4 caudal centra and a fragmentary dentary of a juvenile hadrosaur.