Abstract
Discovery of the Carboniferous rugose coral Dorlodotia briarti in the upper Scandal Beck Limestone of Ravenstonedale, Cumbria suggests that these beds should be correlated with the Belgian Cf4δ Foraminifera Zone (late Arundian) to which this species is confined. The base of the Arundian Stage in Ravenstonedale should therefore be lowered. The genus Dorlodotia is considered to be the fasciculate equivalent of Lithostrotionella and the columellate equivalent of Thysanophyllum.
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