Locality	Layer
	USA, Texas, Brewster Co., Wolf Camp, NW of, Glass Mts.	Gaptank Fm., near top
	USA, Texas, Jack Co., Cundiff, 2 mls NE of	Caddo Creek Fm.
	USA, Texas, Jack Co., Jacksboro, 3.5 mls SE of	Graham Fm., lower part
	USA, Texas, Jack Co., Jacksboro, 3.5mls E of	Graham Fm., Finis Shale