Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass †Lithistida Schmidt, 1870
       Order Monalithistida Lagneau-Hérenger, 1955
         Suborder Sphaerocladina Schrammen, 1910
           Family †Lecanellidae Schrammen, 1924
             1 Genus †Sphaeropegma Schrammen, 1936
             2 Genus †Lecanella Zittel, 1878
             3 Genus †Poterionella Pocta, 1903
             4 Genus †Regnardia Moret, 1925