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.
                 [Infrakingdom "Glycobacteria"ᵀ Cavalier-Smith 2002 stat. inval. [paraphyletic?]] see Domain Bacteria Woese et al. 1990 stat. inval.
                   [Division "Cyanobacteria" (ex Stanier 1974) Cavalier-Smith 2002 stat. inval.] see Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval.
                     [Subdivision "Phycobacteria"ᵀ Cavalier-Smith 2002 stat. inval.] see Subphylum Phycobacteria Cavalier-Smith 2002 stat. inval.
                       1 [Class Chroobacteriaᵀ Cavalier-Smith 2002 nom. rej.] see Subclass Oscillatoriophycideae Hoffmann, Komárek & Kaštovský (2005), nom. inval., orth. inval.
                       2 [Class Hormogoneae Cavalier-Smith 2002 nom. illeg., nom. rej. - filamentous cyanobacteria] see Subclass Nostocophycideae Hoffmann, Komárek & Kaštovský (2005), nom. inval., orth. inval.