LOEWEN, FARKE, SAMPSON, GETTY, LUND, & O'CONNOR, 2013
Holotype: UMNH VP 20949
Locality: Grand Staircase-Escalante National Monument, Southern Utah.
Horizon: Kaiparowits Formation.
Biostratigraphy:
Age: Judithian Age, Upper Campanian Stage, Upper Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.
Material: Fragmentary skull.