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 Neosarcodina Cavalier-Smith, 1993
                 Phylum Rhizopoda Dujardin, 1835 - rhizopods see Phylum Cercozoa Cavalier-Smith, 1998
                   Class Filosea Leidy, 1879 - filose amebas
                     Subclass Cristivesiculatia Page, 1987 [monotypic]
                       Order Vampyrellida West, 1901
                         1 Family Vampyrellidae Zopf, 1885
                         2 Family Arachnulidae Page, 1987 see Family Vampyrellidae Zopf, 1885