life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Prokaryota (Dougherty 1957) Allsopp 1969 [monotypic] see Domain Bacteria Woese et al. 1990 stat. inval.
     Kingdom Bacteria Cavalier-Smith 1998 nom. inval. [paraphyletic] - bacteria see Kingdom Bacteria Cavalier-Smith 2002 stat. inval.
       Subkingdom Negibacteria Cavalier-Smith 1987 nom. inval. [paraphyletic?] see Subkingdom Negibacteria Cavalier-Smith 2002 stat. inval.
         Infrakingdom Glycobacteria Cavalier-Smith 1998 nom. inval. [paraphyletic?] see Infrakingdom Glycobacteria Cavalier-Smith 2002 stat. inval.
           Superphylum Pimelobacteria (Cavalier-Smith 1992) Cavalier-Smith 1998 [paraphyletic?] see Domain Bacteria Woese et al. 1990 stat. inval.
             Phylum Cyanobacteria Cavalier-Smith 1998 nom. inval. see Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval.
               Subphylum Phycobacteria Cavalier-Smith 1998 nom. inval. see Subphylum Phycobacteria Cavalier-Smith 2002 stat. inval.
                 1 Genus Anabaena Bory ex Bornet & Flahault (1886), nom. cons. see Genus Anabaena Bory ex Bornet and Flahault 1886 nom. cons.
                 2 Genus Nostoc Vaucher ex Bornet & Flahault (1886) see Genus Nostoc Vaucher ex Bornet and Flahault 1886
                 3 Genus Prochloron Lewin (1977), nom. inval. see Genus Prochloron Lewin ex L.Hoffm. & Greuter (1993)