Kingdom Eubacteria Woese and Fox 1977 see Domain Bacteria Woese et al. 1990 stat. inval.
   Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval. - cyanobacteria see Phylum Cyanobacteriota Oren et al. 2022
     Order Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914
     Order Oscillatoriales Schaffner (1922) see Order Oscillatoriales Schaffner 1922