"432.9"^^ . "Mudstone with subsidiary laminated hemipelagic mudstone."@en . . "Claerwen Group"@en . "Claerwen Group"@en . "CLAE"@en . . . . . "stable"@en . "Mudstone with subsidiary laminated hemipelagic mudstone. Stratified bedrock. Occurs onshore. Deposited during the Aeronian Age - to - Telychian Age (Silurian Period) (440.5-432.9 Ma BP)."@en . . "440.5"^^ . .