Locality	Layer
	USA, Arkansas, Madison Co., St.Paul, Thompson, White River bridge	Hale Fm., Prairie Groove member
	USA, Arkansas, Washington Co., Fayetteville, Maple Viaduct	Hale Fm., Prairie Grove Member
	USA, Arkansas, Washington Co., Fayetteville, quarry 3.5 mls. NE of	Hale Fm., Prairie Grove Member
	USA, Arkansas, Washington Co., Fayetteville, quarry in NE part	Hale Fm., Prairie Grove Member
	USA, Oklahoma, Mayes Co., Pryor, Locust Grove	Caney Shale