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.
Age: Late Carnian Stage, Late Triassic Epoch, Late Triassic.
Number: Not given: