. "DCS"@en . "Downton Castle Sandstone Formation"@en . "Downton Castle Sandstone Group [Obsolete: use DCS]"@en . "Clun Forest Formation [Obsolete: use DCS, RG, PAB]"@en . . . . "Ludlow Bone Bed Member locally at base; Platyschisma Shale Member (to 2m) above; mainly yellow, fine-grained, micaceous, well-sorted cross-bedded sandstone (Sandstone Member), with siltstone and olive green mudstone."@en . "Base of Ludlow Bone Bed Member (if present); sharp junction with underlying Upper Ludlow Shale (Upper Whitcliffe Formation)."@en . "stable"@en . "Micaceous sandstone and sandstone with subsidiary mudstone and siltstone. Stratified bedrock. Occurs onshore. Deposited during the Pridoli Epoch (Silurian Period) (422.7-419 Ma BP)."@en . . . . . . . "About 15m in type area; 17m at Ludlow, 15-20m in South Staffordshire"@en . "Downton Castle Sandstone Formation"@en . . "419.0"^^ . . "422.7"^^ . "Top of highest sandstone below red mudstones of the Ledbury (Raglan Mudstone) Formation or below the conformable base of the olive green mudstones and siltstones of the Temeside Shales Formation."@en .