Phylum Porifera Grant, 1836 - sponges Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885 Subclass Clavaxinellida Lévi, 1956 Order Clavulina Vosmaer, 1887 Family Suberitidae Schmidt, 1870 Genus †Suberites Nardo, 1833