Locality Layer
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., Buffalo Wallow 2 mls S of Moorefield Ruddel Shale of Moorefield Fm.
USA, Arkansas, Independence Co., Jamestown, Ramsey Bottom Ruddel Shale, lower part
USA, Arkansas, Independence Co., Salado quad., Pine Mountain section Ruddel Shale, base
USA, Arkansas, Independence Co., Sulphur Rock, Howards Wells Ruddel Shale
USA, Arkansas, Scott Co., Waldron, Boles, W of Session Creek Johns Valley Shale
USA, Arkansas, Searcy Co., Silver Hill, Luther Arnold's Farm Ruddel Shale
USA, Arkansas, Searcy Co., Snowball, Pate Mountain NE side Ruddel Shale