Phylum Cyanobacteria Garcia-Pichel et al. (2020) see Phylum Cyanobacteriota Oren et al. 2022 Class Cyanophyceae Hauck (1885) see Class Chroococcophyceae Hollerbach et al. 1953 Order Chroococcales Ardissone (1887) see Order Chroococcales corrig. Ardissone 1887 Family Microcystaceae Elenkin (1933) see Family Microcystaceae Elenkin 1933 Genus Chalicogloea M.Roldán, M. Ramírez, J. del Campo, Hern.-Mar. & Komárek (2013) see Genus Chalicogloea Roldán et al. 2013