Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Parazoa (Sollas, 1884) see [unranked] Parazoa (Sollas, 1884)
       Phylum Spongia
         Class Demospongiae Sollas, 1885 - demosponges
           Order Tetraxonida
             Suborder Astromonaxonellina
               1 Family Donatiidae Burton, 1924 see Family Tethyidae Gray, 1867
               2 Family Chondrosiidae Schulze, 1877
               3 Family Polymastiidae Gray, 1867
               4 Family Suberitidae Schmidt, 1870
               5 Family Spirastrellidae Ridley & Dendy, 1886
               6 Family Clionidae d'Orbigny, 1851, nom. illeg. see Family Clionaidae d'Orbigny, 1851