[Class] Cyanobacteria "Stanier (1974)", nom. inval. - cyanoprokaryotes see Class Cyanophyceae Hauck (1885)
   Order Synechococcales Hoffmann, Komárek & Kaštovský (2005), nom. inval. [paraphyletic] see Order Synechococcales Hoffmann et al. 2005 nom. nud.
     Family Synechococcaceae Komárek & Anagn. (1995) see Family Synechococcaceae Komárek and Anagnostidis 1995
       Genus "Thermosynechococcus" Katoh et al. (2001), nom. nud. see Genus Thermosynechococcus Katoh, Itoh, Shen & Ikeuchi (2020)