prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Cyanobacteria" (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria Order Prochlorales (ex Lewin 1977) Florenzano et al. 1986 see Order Chroococcales Cavalier-Smith 2002 Family "Prochlorococcaceae" [monotypic] 1 Genus Prochlorococcus Chisholm et al. 2001 see Genus Prochlorococcus S.W. Chisholm et al. 1992 [ICBN]