Locality	Layer
	Spain, León, Esla Region, Santaolaja de la Varga	4
	Spain, Oviedo (Asturias), Entrago	Marbre Griotte
	USA, Arkansas, Independence Co., Batesville vicinity	Ruddell Shale
	USA, Arkansas, Independence Co., Batesville, Ruddel Hill, White River J.	Ruddel Shale, base
	USA, Arkansas, Independence Co., Jamestown, Ramsey Bottom	Ruddel Shale, lower part
	USA, Arkansas, Independence Co., Jamestown, Ramsey Bottom	Ruddel Shale, middle part
	USA, Arkansas, Independence Co., Salado quad., Pine Mountain section	Ruddel Shale, base
	USA, Oklahoma, Pushmataha Co., sec.3, T.1S., R.16E., Caney Creek branch	Caney Shale
	USA, Texas, San Saba Co., San Saba, 2.5 mls SE of	Barnett Fm.