Name Ragland sandstone applied to sandstones of Hamilton age in St. Clair Co., central AL. Strata was previously included in Frog Mountain sandstone. At type locality, the formation is unconformably overlain by Fort Payne chert and unconformably underlain by Little Oak limestone. It consists of (ascending) 1) 1 ft of coarsely crystalline, dark, sandy, fossiliferous limestone; 2) 0.5 ft of dark fossiliferous, argillaceous shale; 3) 1.5 ft of hard, fine-grained calcareous, fossiliferous sandstone; 4) 2.5 ft of highly fossiliferous brown, rotten, ferruginous sandstone and shale; and 5) 48 ft of thick-bedded sandstone, some layers coarse-grained, others fine-grained with nodular chert-like bands, some dark shale, and scattered fossils. [See also Butts (1927: Washington Acad. Science Jour., v. 17, p. 128-129) and Butts (1927: U.S. Geological Survey Atlas, Folio 221, p. 9).]

Source: GNU records (USGS DDS-6; Reston GNULEX).

Ragland sandstone is tentatively correlated with MERISTELLA-Coral zone of Schoharie Valley sequence occurring about 250 ft above Onondaga limestone and containing "SPIRIFER" VENUSTUS. Shown on chart as younger than Frog Mountain sandstone.

Source: GNU records (USGS DDS-6; Reston GNULEX).