"C-Bed Evaporite"@en . . "Gypsum-stone."@en . "Gypsum-stone. Stratified bedrock. Occurs onshore. Deposited during the Guadalupian Epoch - to - Lopingian Epoch (Permian Period) (274.4-251.9 Ma BP)."@en . "274.4"^^ . . "Permian Evaporite C [Obsolete: use CBE]"@en . "C-Bed Evaporite"@en . . "CBE"@en . . . . . "stable"@en . "251.9"^^ . .