Locality	Layer
	USA, Oklahoma, Hughes Co., Phillips Chapel, 0.6 km S of	Wewoka Fm.
	USA, Oklahoma, Tulsa Co., Prattville, 6,8 km W of Hwy.97 and 41st	Iola Fm., Muncie Creek Shale
	USA, Texas, Brewster Co., Wolf Camp, 5 mls NE of, Glass Mts.	Gaptank Fm., near top
	USA, Texas, Brewster Co., Wolf Camp, NW of, Glass Mts.	Gaptank Fm., near top
	USA, Texas, Brown Co., Brownwood, 16 km N of, Brownwood Lake	Caddo Creek Fm., Colony Creek Shale
	USA, Texas, Palo Pinto Co., Brad, 2,96 km W of highway 180 and 16 j.	Caddo Creek Fm., Colony Creek Shale