. "OI"@en . . "stable"@en . "473.75"^^ . "Whitlandian Stage is a stage in the British regional Ordovician stratigraphic scheme. It is the second of three stages of the Arenig Series. It is preceded by the Moridunian Stage and succeeded by the Fennian Stage (Geologic Time Scale 2020, fig. 20.12)."@en . "Whitlandian Stage"@en . "Whitlandian Stage"@en . "470.75"^^ . .