Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Phylum Metamonada Grassé, 1952 [coordinate rank]
                     Subphylum Trichozoa Cavalier-Smith, 1997
                       Infraphylum Fornicata Simpson, 2003
                         Class Eopharyngea Cavalier-Smith, 1993
                           Order Diplomonadida Wenyon, 1926 - diplomonads
                             Suborder Distomatina Senn, 1900
                               Family Hexamitidae Kent, 1881
                                 [Subfamily Hexamitinaeᵀ Kent, 1880] see Family Hexamitidae Kent, 1881
                                   3 Genus Trigonomonas Klebs, 1892
                                   4 Genus Gyromonas Seligo, 1886
                                   5.0 [Genus Hexamitus Dujardin, 1838] see Genus Hexamita Dujardin, 1838
                                   5.0 [Genus Urophagus Klebs, 1892] see Genus Hexamita Dujardin, 1838