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
             Class Coccogoneae Thuret (1875) - coccoid cyanobacteria see Subclass Oscillatoriophycideae
               Order Chroococcales Wettst. (1924)
                 1 Genus Gloeocapsa Kützing 1843 nom. cons. [ICBN]
                 2 Genus Chroococcus C. Nägeli 1849 [ICBN]
                 3 Genus Anacystis G. Meneghini 1837 see Genus Synechococcus C. Nägeli (1849)
                 4 Genus Prochloron R.A. Lewin 1977 [ICBN]
                 5 Genus Synechocystis C. Sauvageau 1892 [ICBN]
                 6 Genus Synechococcus C. Nägeli (1849)
                 7 Genus Entophysalis F.T. Kützing (1843)