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 Anaeromonada Cavalier-Smith, 1997 [monotypic]
                       Class Anaeromonadeaᵀ Cavalier-Smith, 1997
                         Order Trimastigida Cavalier-Smith, 2003 [monotypic]
                           Family Trimastigidaeᵀ Saville Kent, 1880 [monotypic]
                             Genus Trimastix Kent, 1880
                               Trimastix pyriformis (G.A. Klebs, 1892) C. Bernard et al., 1999