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