Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Biota
           "neomura"
             Domain Eukaryota Chatton, 1925 - eukaryotes
               [Kingdom Protozoa Goldfuss, 1818 [paraphyletic] - protozoa]
                 [Subkingdom Eozoa Cavalier-Smith, 1997 [paraphyletic]] see Superphylum Eozoa Cavalier-Smith, 1997
                   [Infrakingdom Excavata T. Cavalier-Smith, 2002 [paraphyletic]] see Supergroup Excavata Cavalier-Smith, 2002
                     [Superphylum Archezoa (Cavalier-Smith, 1983) Cavalier-Smith, 2002] see Phylum Metamonada Grassé, 1952