Description de quelques brachiopodes Spinocyrtiidae (Spiriferida) du Dévonien inférieur de Belgique = Description of some spinocyrtiid brachiopods (Spiriferida) from the Lower Devonian of Belgium

Four species of spinocyrtiid brachiopods assigned to the genera Subcuspidella MITTMEYER, 1965 et Tenuicostella MITTMEYER & GEIB, 1967 are described. Subcuspidella cf. subcuspidata (SCHNUR, 1851) occurs in the Hierges and St-Joseph Formations (Upper Emsian) and S. beugniesi n. sp. in the Hierges Formation. S. asselberghsi n. sp. has been collected in the Pesche Formation (Lower Emsian) and Tenuicostella dumonti n. sp. in the La Roche Formation (Pragian).