Porifera Grant, 1836 - sponges Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885 Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885 Vaceletida Finks & Rigby, 2004 Verticillitidae Steinmann, 1882 Verticillitinae Steinmann, 1882 †Stylothalamia Ott, 1967