. . "Crow Coal (A) [Obsolete: use CRWC]"@en . "Coal. Stratified bedrock. Occurs onshore. Deposited during the Pendleian Substage (Carboniferous Period) (330.3-327 Ma BP)."@en . . . . . "Crow Coal (Dungannon: Pendleian)"@en . "327.0"^^ . "stable"@en . "CRWC"@en . . . "330.3"^^ . . "Coal."@en . "Crow Coal (Dungannon: Pendleian)"@en .