Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
   Opisthokonta Cavalier-Smith, 1987 - opisthokonts see Clade Opisthokonta Cavalier-Smith 1987, nom. cl. inval.
     Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
       1 Phylum Porifera Grant, 1836 - sponges
       2.1 Phylum Placozoa Grell, 1971
       2.2 Eumetazoa Bütschli, 1910 - eumetazoans