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New species of Frechastraea Scrutton, 1968 at the base of the Late Frasnian in Belgium
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Reassignment to the Middle Devonian of some rugose corals investigated by LE MAÎTRE (1934) in the Chalonnes Formation from the Southeastern Armorican Massif (France)
A fourth level of Frasnian carbonate mounds along the south side of the Dinant Synclinorium (Belgium)
Les formations du Devonien Moyen de la Belgique