Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Eukaryota Chatton, 1925 - eukaryotes] see Domain Eukaryota Chatton, 1925
             [Phylum Retortamonada] see Class Retortamonadea Grassé, 1952
               2 [Class Diplomonadea] see Subclass Diplozoa (Dangeard, 1910) Cavalier-Smith, 1996