Genus: Ornithomimus non MARSH, 1890 (nomen dubium)

Species: grandis MARSH, 1890 (nomen dubium)
Etymology: Latin, grandis, "full grown, large."
= Deinodon grandis (MARSH, 1890) OSBORN, 1916 (nomen dubium)
= Aublysodon grandis (MARSH, 1890) HUENE, 1932 (nomen dubium)

Holotype: See below.

Locality: Alkali Creek, Niobrara County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

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

Material: (?From one individual)

USNM 2110: Metatarsal IV and right pes lacking Proximal end.

USNM 6183: Femur, tibia, and fibula lacking distal end.

USNM 8064: Right ilium.

Referred material:

HUENE, 1932

Locality: Cow Creek, Fergus County, Montana.

Horizon: Eagle sandstone.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Metatarsal III.