Natura - nature
Status: extant
   actualia - actual entities
  Status: extant
     Mundus Plinius - physical world
    Status: extant
       naturalia - natural bodies
      Status: extant
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
        Distribution: cosmopolitan (marine, brackish, freshwater, terrestrial & aerial); Period: Archean - Present (3770 - 0 Mya); Status: extant
           Clade neomura Cavalier-Smith, 1987
          Distribution: cosmopolitan (marine, brackish, freshwater & terrestrial); Period: Archean - Present (3420 - 0 Mya); Status: extant
             Domain Eukaryota Chatton, 1925 - eukaryotes
            Distribution: cosmopolitan (marine, brackish, freshwater & terrestrial); Period: Proterozoic - Present (1650 - 0 Mya); Status: extant
               Clade discaria Cavalier-Smith, 2021
              Distribution: cosmopolitan (marine, brackish, freshwater & terrestrial); Period: Proterozoic - Present [2500 Mya - present]; Status: extant
                 Clade natates Cavalier-Smith, 2021
                Status: extant
                   Phylum Metamonada Grassé, 1952 [coordinate rank]
                  Status: extant
                     Subphylum Trichozoa Cavalier-Smith, 1997
                    Status: extant
                       Infraphylum Parabasalia Honigberg, 1973
                      Status: extant
                         Class Trichomonadea Kirby, 1947
                        Status: extant
                           Subclass Cristomonadia Cavalier-Smith, 2012
                          Status: extant
                             Order Cristamonadidaᵀ Brugerolle & Patterson, 2001
                            Status: extant
                               Family Devescovinidae Doflein, 1911
                              Status: extant
                                 Subfamily Devescovininaeᵀ Doflein, 1911
                                Status: extant
                                   Genus Foaina Janicki, 1915
                                  Status: extant
                                     Foaina solita Kirby
                                    Status: extant