"Taken at the base of the lowest Waulsortian limestone, which rests conformably upon fissile mudstones of the \"Lower Coplow Shales\"."@en . "Coplow Knoll Series [Obsolete: use COPL]"@en . . . "344.5"^^ . "Up to 300 m thick."@en . "Coplow Limestone Member"@en . . "Pure, massive and biohermal Waulsortian limestones with surbordinate packstones, grainstones and thin fissile mudstones."@en . "Limestone with subsidiary mudstone. Stratified bedrock. Occurs onshore. Deposited during the Chadian Substage (Carboniferous Period) (346.7-344.5 Ma BP)."@en . . . . . "Coplow Limestone Member"@en . "stable"@en . . "COPL"@en . "Generally, Waulsortian limestones of the Coplow Limestone Member are overlaain unconformably by mudstones of the Hodder Mudstone Formation. In the Clitheroe Anticline the upper part of the Coplow Limestone Member is present, with Waulsortian limestones overlain conformably by poorly exposed dark grey fissile mudstones and packstones of the 'Upper Coplow Shales'."@en . . "346.7"^^ . .