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
           1 Class Demospongiae Sollas, 1885 - demosponges
           2 Class Sclerospongiae Hartman & Goreau, 1970 see Class Demospongiae Sollas, 1885
           3 Class Calcarea Bowerbank, 1864 - calcareous sponges
           4 Class Hexactinellida Schmidt, 1870 - hexactinellids