living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Parazoa (Sollas, 1884) see Phylum Porifera Grant, 1836
         Phylum Porifera Grant, 1836 - sponges
           Class Demospongiae Sollas, 1885 - demosponges
             Subclass Tetractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
               Order Lithistida Schmidt, 1870 - lithistids see Subclass Lithistida Schmidt, 1870
                 Suborder Rhabdosina
                   1 Family Scleritodermidae Sollas, 1888 see Family Scleritodermatidae Sollas, 1888
                   2 Family Neopeltidae Sollas, 1888
                   3 Family Siphonidiidae Lendenfeld, 1903