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 Calcarea Bowerbank, 1864 - calcareous sponges
           Order Heterocoela see Order Leucosolenida Hartman, 1958
             Family Sycettidae Dendy, 1893
               1 Genus [Sycetta] Haeckel, 1872
               2 Genus [Sycon] Risso, 1826