"Coal. Stratified bedrock. Occurs onshore. Deposited during the Langsettian Substage (Carboniferous Period) (319-318 Ma BP)."@en . . . . . "Kennox Lower Drumgray Coal (Douglas)"@en . "stable"@en . . "Coal."@en . "318.0"^^ . . "Kennox Lower Drumgray Coal (Douglas)"@en . "KELD"@en . . . "319.0"^^ .