. . "Ell Coal (Central Coalfield)"@en . "318.0"^^ . . "314.75"^^ . "stable"@en . . . "Coal. Stratified bedrock. Occurs onshore. Deposited during the Duckmantian Substage (Carboniferous Period) (318-314.75 Ma BP)."@en . "ELLC"@en . . "Ell Coal (Central Coalfield)"@en . . "Coal."@en . .