life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokarya see Domain Bacteria Woese et al. 1990
     Kingdom Bacteria (Cohn 1870) Cavalier-Smith 1983 - bacteria see Kingdom Bacteria Cavalier-Smith 2002
       Subkingdom Eubacteria Cavalier-Smith 1981 see Domain Bacteria Woese et al. 1990
         Division Gracilicutes Gibbons and Murray 1978 (Approved Lists 1980) see Phylum Gracilicutes
           Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria
             1 Genus Gloeothece C. Nägeli 1849 [ICBN]
             2 Genus Hyella É. Bornet & C. Flahault (1888)
             3 Genus Lyngbya C.Agardh ex Gomont (1892), nom. cons.
             4 Genus Microcystis Lemmerm. (1907), nom. cons.
             5 Genus Prochlorococcus Chisholm et al. 1992 see Genus Prochlorococcus Chisholm et al. 2001
             6 Genus Spirulina P.J.F. Turpin ex M. Gomont (1892)
             7 Class Coccogoneae Thuret (1875) - coccoid cyanobacteria see Subclass Oscillatoriophycideae
             8 Class Hormogoneae Thuret (1875) - filamentous cyanobacteria see Class Hormogoneae Cavalier-Smith 2002