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
             1 Suborder Homosclerophora see Order Homosclerophorida Dendy, 1905
             2 Suborder Sigmatophora
             3 Suborder Astrophora see Suborder Astrophorina Sollas, 1888
             4 Suborder Astromonaxonellina