Holotype:

Locality: BYU 7510, North of Arches National Park boundary 3.22 km. 1.2 km east of Dalton Well south of U. S. 160 in section 22, T24S, R20E, Dalton Wells Quarry, Grand County, Southeastern Utah.

Horizon: Member?, Middle Cedar Mountain Formation.

Biostratigraphy:

Age: Cashenranchian age, Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: