GAO & FOX, 1996
Genus and species undetermined (A)
Locality: Near Irvine, Sec. 31, Tp11, R2, W4, about 40 km east of Medicine Hat, Cypress County, Southeastern, Alberta Province, Canada.
Horizon: Oldman Formation, middle Belly River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
UALVP 29810: Dentary fragment with 4 teeth, and the broken bases and spaces for 8 others.
UALVP 29907: Dentary fragment with the bases and spaces for 10 teeth.
Genus and species undetermined (B)
Locality: Bug Creek Anthills locality, SW ¼, Sec.9, Tp.22, R43, McCone County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 29722: Incomplete left dentary having 7 teeth and the bases and spaces for 4 others.