"A gradational contact with the Dalmary Sandstone Member of the Teith Sandstone Formation, which is generally greenish grey and commonly contains plant remains."@en . . . "stable"@en . "394.3"^^ . "At least 400 m thick."@en . "Buchlyvie Sandstone Member"@en . "Upper Purple Sandstone Facies [Obsolete: use BUCS]"@en . . . . "A reddish grey, fine- to medium-grained, commonly cross-bedded sandstone, interbedded with siltstone and chocolate brown to brick red, silty mudstone."@en . "Sandstone, siltstone and silty mudstone with subsidiary mudstone and pebbly (gravelly) sandstone and trace conglomerate. Stratified bedrock. Occurs onshore. Deposited during the Early Devonian Epoch (Devonian Period) (419-394.3 Ma BP)."@en . . . "BUCS"@en . . "The top is not seen, as it is faulted against and unconformably overlain by the basal conglomerate and sandstones of the Stockiemuir Sandstone Formation, of the Upper Devonian, Stratheden Group."@en . "Buchlyvie Sandstone Member"@en . . "419.0"^^ .