"Ardross Lingula Band"@en . "Conformable."@en . . "stable"@en . . "346.7"^^ . "Mudstone with Lingula."@en . . "Ardross Lingula Band"@en . "ARLB"@en . . "Conformable."@en . . . "330.3"^^ . "1.22m in type section."@en . "Mudstone. Stratified bedrock. Occurs onshore. Deposited during the Visean Age (Carboniferous Period) (346.7-330.3 Ma BP)."@en . . .