Opisthokonta Cavalier-Smith 1987, nom. cl. inval. see Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020]
   Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
     Epitheliozoa Ax, 1996
       Eumetazoa Bütschli, 1910 - eumetazoans
         Cnidaria Hatschek, 1888 - cnidarians
           1 Anthozoa Ehrenberg, 1831 see Class Anthozoa Ehrenberg, 1831
           2 Tesserazoa Salvini-Plawen, 1978
           3 Myxozoa Grassé, 1970 see Subphylum Myxozoa Grassé, 1970