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 Cornacuspongida
             Suborder Phthinorhabdina
               1 Family Axinellidae Carter, 1875
               2 Family Gelliidae Gray, 1872 see Family Chalinidae Gray, 1867
               3 Family Spongillidae Gray, 1867
               4 Family Chalinidae Gray, 1867
               5 Family Ciocalyptidae see Family Halichondriidae Gray, 1867