Reassignment to the Middle Devonian of some rugose corals investigated by LE MAÎTRE (1934) in the Chalonnes Formation from the Southeastern Armorican Massif (France)

Nine taxa of rugose corals collected by LEMAÎTRE (1934) and coming from the Chalonnes Formation of the Southeastern Armorican Massif in France have been revised. They belong to the genera Stringophyllum WEDEKIND, 1922, Sociophyllum BIRENHEIDE, 1962, Acanthophyllum DYBOWSKI, 1873, Beugniesastraea COEN-AUBERT, 1989 and Fasciphyllum SCHLÜTER, 1885. Among this material, Stringophyllum acanthicum (FRECH, 1885), Sociophyllum elongatum (SCHLÜTER, 1881), Acanthophyllum vermiculare (GO LDFUSS , 1826) and A. tortum (TSIEN, 1969) occur close to the Eifelian-Givetian boundary, on the south side of the Din... Mehr ...