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 Gomontiellales Strunecký & Mareš (2023) see Order Gomontiellales Strunecký and Mareš 2023 Family Cyanothecaceae Komárek, J. Kaštovský, J. Mareš & J.R.Johans. (2014) [monotypic] see Family Cyanothecaceae Komárek et al. 2014 Genus Cyanothece Komárek (1976) see Genus Cyanothece Komárek 1976