Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass †Lithistida Schmidt, 1870
       Order Tetralithistida Lagneau-Hérenger, 1962
         Suborder Tetracladina Zittel, 1878
           Family †Chenendoporidae Roemer, 1864
             1 Genus †Chenendopora Lamouroux, 1821
             2 ?Genus †Dimorphina Reid, 2004, nom. illeg.
             3 Genus †Microcladina Lagneau-Hérenger, 1962
             4 ?Genus †Tragalimus Pomel, 1872