Parent taxon: Cyanobacteria according to V. N. Sergeev et al. 1995
See also Hofmann 1976
Sister taxa: Abruptophycus, Acaciella, Agamus, Aldania, Alternella, Alternia, Angarophycus, Antiquophytolithus, Archaeothrix, Arenarina, Artophycus, Aulophycus, Basisphaera, Beltanelliformis, Bevocastria, Borlogella, Brachypleganon, Bursiphycas, Calevia, Calothricites, Calyptophycus, Camasia, Cambricodium, Catinella, Chabakoviacea, Chomentovskia, Chomustachia, Cirriphycus, Cladogirvanella, Columnaria, Crustophycus, Cyanostroma, Cycularia, Cystostroma, Eoaphanothece, Eoepiphyton, Eophormidium, Eoschizothrix, Eucaspsiphora, Fibrostroma, Filiphycus, Fillostroma, Flexia, Galinia, Georgiana, Glenobotrydion, Glomeophycus, Gouldina, Grenularia, Gruneria, Hecetaphyton, Hormogoneae, Hormosporites, Izhella, Katernia, Kostinophycus, Lamellophycus, Lamellostroma, Leptophycus, Lermontovaephycus, Lopatinella, Madiganites, Maldeotaina, Manacyathus, Mansurkella, Marpolia, Microcystopsis, Morania, Mussooriella, Myxococcoides, Nerusiandella, Nuia, Oncobyrsella, Ostiana, Palaeomicrocystis, Paleocalothrix, Paleoisocystis, Papulophycus, Perennaria, Phanerosphaerops, Pilbaria, Platella, Plexostroma, Polybessurus, Protoepiphyton, Ramulostroma, Ramulus, Rhyniella, Scandophycus, Schizothropsis, Shanganella, Sphaerina, Sphaerothallus, Spirellus, Squamosphaera, Stigonematales, Subtifloria, Talakania, Tarioufetia, Telastroma, Trichostroma, Tubercularia, Tumidophyton, Tunikata, Tuxekanella, Uluksanella, Vesicularia, Vittophyton, Wetheredellidae, Xianella, Porostromata, Sphaerocodium, Rothpletzella, Callosicoccus, Sigmopollis, Millaria, Somphospongia, Lithocodium, Oscillatoriacea, Cladophorites, Setula, Antiquus, Desmekalamos, Cyanophyceae, Myxophyceae
Subtaxa: Chroococcales Pleurocapsales
Ecology: stationary "photoautotroph"