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 Vetulinidae Lendenfeld, 1903
             Subfamily †Macrobrochinae Reid, 2004
               1 Genus †Macrobrochus Schrammen, 1910
               2 Genus †Ozotrachelus de Laubenfels, 1955