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Published online by Cambridge University Press: 01 May 2009
page 32 note 1 A peculiar sandy-clay facies substituting the limestone of the Lower Coal formation.
page 33 note 1 “Die fossile Fauna der Silurischen Diluvial-Geschiebe von Sadewitz bei Oels in Nieder-Schlesien.” By Dr. Ferd. Roemer. 4to. Breslau, 1861.