life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925
     Superkingdom Metakaryota see Domain Eukaryota Chatton, 1925
       Kingdom Protozoa Goldfuss, 1818 - protozoa
         Subkingdom Dictyozoa Cavalier-Smith, 1991
           Branch Bikonta Cavalier-Smith, 1993
             Infrakingdom Neozoa Cavalier-Smith, 1993
               Parvkingdom Alveolata Cavalier-Smith, 1991 see Superphylum Alveolata Cavalier-Smith, 1991
                 Superphylum Miozoa Cavalier-Smith, 1987 see Phylum Miozoa Cavalier-Smith, 1987
                   Phylum Dinozoa Cavalier-Smith, 1981 see Infraphylum Dinozoa Cavalier-Smith, 1981
                     Subphylum Dinoflagellata Bütschli, 1885 see Superclass Dinoflagellata Bütschli, 1885
                       Superclass Dinokaryota Fensome et al., 1993
                         Class Peridinea Ehrenberg, 1830
                           Subclass Thoracosphaeroidia Cavalier-Smith, 1993 [monotypic]
                             1 Genus Thoracosphaera Kamptner, 1927, nom. illeg.