[living organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryota Margulis 1974 nom. nud.
     Kingdom Bacteria Cavalier-Smith 2002 stat. inval. - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
       Subkingdom Negibacteria Cavalier-Smith 2002 stat. inval. - negibacteria see Domain Bacteria Woese et al. 1990 stat. inval.
         Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval. - cyanobacteria see Phylum Cyanobacteriota Oren et al. 2022
           1 Class Cyanophyceae Hauck (1885) see Class Chroococcophyceae Hollerbach et al. 1953
           2 Class Gloeobacteria Cavalier-Smith 2002 nom. rej. [monotypic] see Subclass Gloeobacterophycideae Hoffmann, Komárek & Kaštovský (2005), nom. inval., orth. inval.