"Visean Age"@en . "346.7"^^ . . "Visean Age is a division of geological time within the Carboniferous Period. It is the only age within the Mid Mississippian Epoch. It is preceded by the Tournaisian Age (Early Mississippian Epoch) and succeeded by the Serpukhovian Age (Late Mississippian Epoch). The Visean is also the second of six stages comprising the British regional Carboniferous stratigraphic scheme, preceded by the Tournaisian Stage and succeeded by the Namurian Stage (Geologic Time Scale 2020, figs. 2.1, 23.5; https://timescalefoundation.org/)."@en . "Visean Age"@en . . "stable"@en . . . "330.3"^^ . . . . . . . "CV"@en .