Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class Rhynchonellata Williams et al., 1996 Order †Athyridida Boucot et al., 1964 Suborder †Koninckinidina Harper, 1993 Superfamily †Koninckinoidea Davidson, 1853 Family †Koninckinidae Davidson, 1853