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]
           [Superkingdom "Prokaryota" Margulis 1974 nom. nud. [paraphyletic]]
             [Kingdom "Bacteria" Cavalier-Smith 2002 stat. inval. - bacteria] see Domain Bacteria Woese et al. 1990 stat. inval.
               [Subkingdom "Negibacteria"ᵀ Cavalier-Smith 2002 stat. inval. [paraphyletic?] - negibacteria] see Domain Bacteria Woese et al. 1990 stat. inval.
                 [Phylum Sphingobacteria Cavalier-Smith 1987] see Class Sphingobacteria "Garrity and Holt 2001" nom. nud.
                   [Subphylum "Flavobacteria" "Cavalier-Smith 1998" nom. inval.] see Class Flavobacteria Cavalier-Smith 2002 nom. rej.