Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Porifera Grant, 1836 - sponges
     Class Demospongiae Sollas, 1885 - demosponges
       Subclass Tetractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
         Genus Agelas Duchassaing & Michelotti, 1864
         Genus Asteropus Sollas, 1888
         Genus Axinella Schmidt, 1862
         Genus Calthropella Sollas, 1888
         Genus Chondrilla Schmidt, 1862
         Genus Chondrosia Nardo, 1847
         Genus Cliona Grant, 1826
         Genus Corallistes Schmidt, 1870
         Genus Geodia Lamarck, 1815
         Genus Merlia Kirkpatrick, 1908
         Genus Polymastia Bowerbank, 1863
         Genus Rhabderemia Topsent, 1890
         Genus Spheciospongia Marshall, 1892
         Genus Stelletta Schmidt, 1862
         Genus Suberites Nardo, 1833
         Genus Tabulospongia Mori, 1976 see Genus Acanthochaetetes Fischer, 1970
         Genus Tethya Lamarck, 1814
         Genus Tetilla Schmidt, 1868