BREITHAUPT, 1985

Locality: Wyoming.

Horizon: Pinyon Conglomerate.

Biostratigraphy:

Age: Maastrichtian Stage, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given:

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GILMORE, 1939

Locality: North Side of Two Medicine River, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material:

USNM 13864: Nasals, supraoccipital, and portions of parietal, frontals, numerous other unidentified skull parts, four teeth, incomplete predentary, scapula, ischia, ilia, pubes all incomplete, parts of ulnae, radii, femora, tibiae, a few foot bones, dorsal caudal and sacral centra, and pieces of rib.

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HORNER, 1984

Locality: Pine Butte, 27 km west of Choteau, Teton County, Montana.

Horizon: Upper Two Medicine Formation.

Biostratigraphy:

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

Material:

Number: Not given:

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LULL, 1933

Locality: 3 miles west of Buffalo Lake, 45 miles west of Sweetgrass, Montana.

Horizon: St. Mary River Formation.

Biostratigraphy:

Age: Edmontonian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

AMNH 5464: Part of skull, vertebral column including sacrum, pelvis, femora, tibiae, and foot bones.

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McKENNA & LOVE, 1970

Locality: Approximately 7,500 feet east-southeast of VABM triangulation station 9705 on Pinyon Peak, Mount Hancock 15-minute quadrangle, Teton County, Wyoming.

Horizon: 150 feet above the base of the Pinyon Congolomerate.

Biostratigraphy:

Age: Late Cretaceous.

Material:

AMNH 2571: Right upper posterior cheek tooth.

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RUSSELL, L. S. 1987

Locality: Henry Farm locality, Scollard canyon, Kneehill County, Alberta Province, Canada.

Horizon: Scollard Formation, Uppermost Edmonton Group.

Biostratigraphy:

Age: Lancian Age, uppermost Maastrichtian Stage, uppermost Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.

Horizon:

ROM 26347: Tooth.

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STEIN, 2021

Locality: Tooth Draw Deposit, Butte County, South Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

TD-18-017: Tooth.

TD-16-171: Left ulna.

Numbers: Not given: Shed teeth.