Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             [Domain "Archaea" Woese et al. 1990 stat. inval. [paraphyletic]] see Domain Archaea Woese et al. 2024
               [Kingdom "Crenarchaeota" Woese et al. 1990] see Phylum Crenarchaeota Garrity and Holt 2002 stat. inval.
                 [Order "Igneococcales" Burggraf et al. 1997 nom. inval.]