MAY & HALL, 2016
Locality: Billings 4, SNOMNH site, Nobel County, Northern Oklahoma.
Horizon: Midco Member, Willington Formation.
Biostratigraphy:
Age: Leonardian Stage, Lower Rotliegendes Epoch, Early Permian.
Material:
OMNH-77573: Articulated complete right tabular and postparietal.
OMNH-77574: Partial right tabular.
OMNH-77575: Poorly preserved partial tabular.
OMNH-77576: Partial tabular horn tip.
OMNH-77577: Dorsoventrally flattened partial tabular horn tip.
OMNH-77578: Nearly complete dorsal vertebrae.