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 Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914 Family Tolypotrichaceae Hauer, Bohunická, J.R.Johans., Mareš & Berrendero-Gomez (2014) see Family Tolypotrichaceae corrig. Hauer et al. 2014 Genus Kryptousia Alvarenga, Andreote, Branco & Fiore (2017) see Genus Kryptousia Alvarenga et al. 2017