= cf. Polycotylus sp . indet. MARTIN, SCHUMACHER PARRIS & GRANDSTAFF, 1998

Locality: SDSM V9613, South Dakota.

Horizon: 15 meters below Niobrara/Pierre contact.

Biostratigraphy:

Age: Late Cretaceous.

Material:

SDSM 32723: 4 distal phalanges from the leading edge of a paddle.

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OSTROM, 1965

Locality: Near Conant Creek, southeast of Lander, T33N, R93W or R94W, Fremont County, Wyoming.
Note: Exact locality information has been lost.

Horizon: Base of Belle Fourche Member, Frontier Formation.

Biostratigraphy:

Age: Latest Albian Stage, Middle Gallic Subepoch, Uppermost Early Cretaceous Epoch or earliest Cenomanian Stage, Middle Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.

Material:

Number: Not given:

Note: Found with Stegopelta landerensis.

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SAUVAGE, 1882

Locality: Grandpre, Ardennes Department, France.

Horizon:

Biostratigraphy: Ammonties milletianus zone.

Age: Early Cretaceous.

Material:

Number: Not given: Fragmentary humerus.

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SCHUMANCER & MARTIN, 1995

Locality: South Dakota.

Horizon: Niobrara Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material:

SDSM 23020: A nearly complete skeleton.