Holotype: V 2455

Locality: 7599, Burnham South is located about 3 km south of Burnham Trading Post, in exposures bordering Brimhall Wash, San Juan Basin, New Mexico.

Horizon: Naashoibito Member, Latest Kirtland Formation.

Biostratigraphy:

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

Material: Right LM2.