. . "344.5"^^ . . . "HLAB"@en . "stable"@en . . . "Hillend Algal Band"@en . "Stratified bedrock. Occurs onshore. Deposited during the Arundian Substage (Carboniferous Period) (344.5-343 Ma BP)."@en . . . "Hillend Algal Band"@en . "343.0"^^ .