[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Supergroup Opisthokonta Cavalier-Smith, 1987 - opisthokonts see Clade Opisthokonta Cavalier-Smith 1987, nom. cl. inval.
       Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
         Porifera Grant, 1836 [paraphyletic?] - sponges see Phylum Porifera Grant, 1836
           Calcispongia Johnston, 1842 see Class Calcarea Bowerbank, 1864
             Calcaronea Bidder, 1898 see Subclass Calcaronea Bidder, 1898
               Genus Sycettusa Haeckel, 1872