Domain Bacteria Woese et al. 1990 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria Class "Cyanobacteria" Cavalier-Smith, 2002 Subsection I see Family Family 1.1 nom. inval. Form genus Cyanothece J. Komárek 1976 [ICBN]