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
               Family Donatiidae Burton, 1924 see Family Tethyidae Gray, 1867
                 1 Genus [Tethya] Lamarck, 1814