Phylum Brachiopoda Duméril, 1806 - brachiopods Subphylum Linguliformea Williams et al., 1996 Class Lingulata Gorjansky & Popov, 1985 Order Lingulida Waagen, 1885 Superfamily †Acrotheloidea Walcott, 1908 1 Family †Acrothelidae Schuchert, 1893 2 Family †Botsfordiidae Schindewolf, 1955