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 neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 Clade neozoa Cavalier-Smith 1993
                   Clade scotokaryotes Cavalier-Smith 2000
                     [plesion] Phylum Metamonada Grassé, 1952
                       Subphylum Trichozoa Cavalier-Smith, 1997
                         Superclass Parabasalia Honigberg, 1973 - parabasalids
                           Class Trichomonadea Kirby, 1947
                             1 Order Trichomonadidaᵀ Kirby, 1947 - trichomonads
                             2.1 Genus Trichocovina Maaß & Radek, 2006, incertae sedis
                             2.2 Order Tritrichomonadida Čepička et al., 2010 - tritrichomonadids
                             2.3 Subclass Cristomonadia Cavalier-Smith, 2012