Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Rhynchonelliformea Williams et al., 1996 Class †Chileata Williams et al., 1996 Order †Dictyonellida Cooper, 1956 Superfamily †Eichwaldioidea Schuchert, 1893 1 Family †Eichwaldiidae Schuchert, 1893 2 Family †Isogrammidae Schuchert, 1929