Species: schaffi SUES, 1980
Etymology: In honor of C. R. Schaff, the collector of the specimen.
Holotype: MCZ 4392
Locality: Wolf Creek Canyon, SE 1/4, Sec. 14, T4S, R24E, Carbon County, Montana.
Horizon:Himes Member, Cloverly Formation.
Biostratigraphy:
Age: Late Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.
Material: Fragmentary skull.
Referred material:
KUTTER, 2003
Locality: Montana.
Horizon: Cloverly Formaiton, Unit V.
Biostratigraphy:
Age: Cashenranchian, Late Aptian Stage, middle Gallic subepoch, lower Cretaceous Epoch, Early Cretaceous.
Material:
OMNH: Fragmentary skull and fragmentary skeleton.
Locality: Montana.
Horizon: Cloverly Formaiton, Unit VII.
Biostratigraphy:
Age: Cashenranchian, Late Aptian Stage, middle Gallic subepoch, lower Cretaceous Epoch, Early Cretaceous.
Material:
OMNH: Fragmentary skull and fragmentary skeleton.