Species: Nova?

FISHER, RUSSELL, STOSKOPF, BARRICK, HAMMER & KUZMITZ, 2000

Locality: Harding County, Northwestern South Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

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

Material:

NCSM 15728: Skull and nearly complete skeleton.
Note: With heart impression?