Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval. - cyanobacteria see Phylum Cyanobacteriota Oren et al. 2022
   Subgroup Stigonematalean
     1 Genus Fischerella (Bornet & Flahault) Gomont (1895) see Genus Fischerella (Bornet and Flahault 1886) Gomont 1895
     2 Genus Chlorogloeopsis A.K. Mitra & D.C. Pandey (1967) see Genus Chlorogloeopsis Mitra and Pandey 1967