Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               [Bikonta]
                 ?[Supergroup Excavata Cavalier-Smith, 2002] see [unranked] Excavata Cavalier-Smith, 2002
                   [Phylum Fornicata Simpson, 2003] see Infraphylum Fornicata Simpson, 2003
                     Superclass Eopharyngia (Cavalier-Smith, 1993) Cavalier-Smith, 2003
                       Class Trepomonadea Cavalier-Smith, 1993
                         [Subclass Diplozoa (Dangeard, 1910) Cavalier-Smith, 1996 - diplomonads] see Order Diplomonadida Wenyon, 1926
                           1 [Order Distomatida Klebs, 1892] see Subfamily Hexamitinae Kent, 1880
                           2 [Order Giardiida Cavalier-Smith, 1996] see Subfamily Giardiinae Kulda & Nohýnková, 1978