Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Linguliformea Williams et al., 1996 Class Lingulata Gorjansky & Popov, 1985 Order †Siphonotretida Gorjansky, 1960 Superfamily †Siphonotretoidea Kutorga, 1848 1 Family †Siphonotretidae Kutorga, 1848