Holotype: MNA V6412

Locality: MNA locality 1073, near the junction of Mill Creek and the East Fork of the Sevier River, Podunk Creek, USGS 7.5 minute Quadrangle, Paunsaugunt Plateau, Utah.

Horizon: Upper Kaiparowits Formation.

Biostratigraphy:

Age: Judithian age, Late Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: RM1 posterior half.