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
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Plantae Haeckel (1866) - plants
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Phylum Chlorophyta Pascher (1914) [coordinate rank] - green algae
                               "prasinophytes"
                                 Class Mamiellophyceae Marin & Melkonian (2010)
                                   Order Monomastigales R.E.Norris ex Melkonian & Marin (2010) [monotypic]
                                     Family Monomastigaceaeᵀ Huber-Pestalozzi ex Marin & Melkonian (2010) [monotypic]
                                       Genus Monomastixᵀ A. Scherffel (1912)
                                         Monomastix astigmata H.L. Skuja (1956)