HECKERT, 2001, 2004

Locality: Dying Grounds, PEFO 122, Apache County, Arizona.

Horizon: Upper Blue Mesa Member, Petrified Forest Formation, Chinle Group.

Biostratigraphy:

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

Material:

PEFO 20337: Premaxillary (?) tooth.