organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 - cyanobacteria Class Coccogoneae Thuret (1875) - coccoid cyanobacteria see Subclass Oscillatoriophycideae Order Chroococcales Wettst. (1924) Genus Synechocystis C. Sauvageau 1892 [ICBN]