. "Mudstone. Stratified bedrock. Occurs onshore. Deposited during the Pendleian Substage - to - Arnsbergian Substage (Carboniferous Period) (330.3-323.75 Ma BP)."@en . "GOS"@en . . "Gowlaun Shale Formation"@en . . . "stable"@en . "330.3"^^ . . . "Gowlaun Shale Formation"@en . "323.75"^^ . "Mudstone."@en . . "Gowlaun Shale [Obsolete: use GOS]"@en .