. . . . "Obsolete name. Stratified bedrock. Occurs onshore. Deposited during the Holkerian Substage (Carboniferous Period) (343-337 Ma BP)."@en . "archaic"@en . "337.0"^^ . "[Obsolete: use PKL]"@en . "KECR"@en . . "Park Limestone Formation"@en . . "Kettlewell Crag Member [Obsolete: use PKL]"@en . "343.0"^^ . . . "Kettlewell Crag Member [Obsolete: use PKL]"@en .