Phylum Porifera Grant, 1836 - sponges
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
     Subclass †Lithistida Schmidt, 1870
       Order Spirosclerophorida Reid, 1963
         01 Suborder Rhizomorina Zittel, 1895
         02 Genus †Mastostroma Wu, 1991
         03 Genus †Bothrochlaenia Pomel, 1872
         04 Genus †Pachypsechia Pomel, 1872
         05 Genus †Siphonocoelia Fromentel, 1860
         06 Genus †Chlaenia Pomel, 1872
         07 Genus †Cladilithosia Pomel, 1872
         08 Genus †Cupulina Courtiller, 1861
         09 Genus †Diacyparia Pomel, 1872
         10 Genus †Discodermites Sollas, 1880
         11 Genus †Elasmalimus Pomel, 1872
         12 Genus †Hypothyra Pomel, 1872
         13 Genus †Macandrewites Sollas, 1880
         14 Genus †Ocellaria Ramond, 1801
         15 Genus †Orosphecion Pomel, 1872
         16 Genus †Ortmannispongia de Laubenfels, 1955
         17 Genus †Physocalpia Pomel, 1872
         18 Genus †Placojerea Pomel, 1872
         19 Genus †Platispongia Courtiller, 1861
         20 Genus †Podapsis Sollas, 1880
         21 Genus †Polysiphoneudea Fromentel, 1860
         22 Genus †Polystomiella Reid, 2004
         23 Genus †Polythyra Pomel, 1872
         24 Genus †Pterocalpia Pomel, 1872
         25 Genus †Rhizostele Pomel, 1872
         26 Genus †Ishadia Pomel, 1872
         27 Genus †Plethosiphonia Pomel, 1872