POLCYN, WINKLER, JACOS & NEWMAN, 2002

Locality: SMU locality 252, vicinity of North Stinking Springs Mountian, what use to be Seven Springs Ranch, northwest of St. Johns, Apache County, Arizona.

Horizon: Lowe Petrified Forest Formation, Chinle Group.

Biostratigraphy:

Age: Late Carnian Stage, Late Triassic Epoch, Late Triassic.

Material:

Number: Not given: