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 Desertifilales Strunecký & Mareš (2023) [monotypic] see Order Desertifilales Strunecký and Mareš 2023
       Family Desertifilaceae Hašler, Casamatta, Dvořák & Poulíčková (2017) see Family Desertifilaceae Hašler et al. 2017
         1 Genus Desertifilum Dadheech & Krienitz (2012) see Genus Desertifilum Dadheech and Krienitz 2012
         2 Genus Jacksonvillea Hašler, Casamatta, Dvořák & Poulíčková (2017) see Genus Jacksonvillea Hašler et al. 2017
         3 Genus Klisinema Heidari & Hauer (2018) see Genus Klisinema Heidari and Hauer 2018
         4 Genus Roseofilum Casamatta, Stanić, Gantar & Richarson (2012) see Genus Roseofilum Casamatta et al. 2012