Class Cyanoprokaryota Komárek & Golubić 1990 nom. nud. - cyanoprokaryotes
   Subclass Oscillatoriophycidae Hoffmann, Komárek & Kaštovský (2005), nom. inval.
     Order Chroococcales Ardissone (1887) see Order Chroococcales corrig. Ardissone 1887
       Family "Spirulinaceae" Hoffmann, Komárek & Kaštovský (2005), nom. inval. see Family Spirulinaceae Hoffmann, Komárek & Kaštovský (2014)
         1 Form genus Glaucospira Lagerheim (1892) see Genus Glaucospira Lagerheim 1892
         2 Genus Halospirulina Nübel et al. 2000
         3 Genus Spirulina P.J.F. Turpin ex Gomont (1892) see Genus Spirulina Turpin ex Gomont 1892