Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Empire Prokaryota (Dougherty 1957) Allsopp 1969] see Domain Bacteria Woese et al. 1990
             [Kingdom "Bacteria" (Cohn 1870) Cavalier-Smith 1983 - bacteria] see Kingdom Bacteria Cavalier-Smith 2002
               [Subkingdom "Unibacteria" Cavalier-Smith 1998] see Subkingdom Unibacteria Cavalier-Smith 2002
               1 [Subkingdom Archaea Woese et al. 1990] see Domain Archaea Woese et al. 1990
               2 [Phylum Gracilicutes] see Subkingdom Negibacteria Cavalier-Smith 2002
               2 [Subkingdom "Negibacteria" Cavalier-Smith 1987 [paraphyletic?]] see Subkingdom Negibacteria Cavalier-Smith 2002
               4 [Subkingdom Eubacteria Cavalier-Smith 1981] see Domain Bacteria Woese et al. 1990
               4 [Grade "Eubacteria"]