Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 [monotypic] - cyanobacteria Class "Cyanobacteria" Cavalier-Smith, 2002 Subsection I [monotypic] see Family Family 1.1 nom. inval. Family I see Family Family 1.1 nom. inval. Form genus Prochloron (ex Lewin 1977) Florenzano et al. 1986 see Genus Prochloron R.A. Lewin 1977 [ICBN]