Species: cloudi OLSON, 1960
Etymology:

Holotype: CNHM UR 619

Locality: 223.75 feet above base of Kootenia, T4S, R8W, Cent. NE SE Sec. 23, Silver Bow County, Montana.

Horizon: Kooteani Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material: Lower Jaw.