Species: incisuvus COPE, 1872
Etymology:

Holotype: AMNH 1582

Locality: Near Butte Creek, south of Wallace, Wallace County, Kansas.

Horizon: Niobrara Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material: 2 caudal vertebrae and a metapodial.

Referred material:

MERRILL, 1907

Locality: Smoky Hill River, Kansas.

Horizon: Niobrara Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material:

USNM 3903: Proximal end of humerus, femur, potion of scapula, coracoid and limb bones.