Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           Domain Bacteria (Haeckel, 1894) C.R. Woese et al., 1990 [paraphyletic?]
           Clade neomura T. Cavalier-Smith, 1987
           ?"viruses"