Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval. - cyanobacteria see Phylum Cyanobacteriota Oren et al. 2022 Subgroup Stigonematalean Genus Fischerella (Bornet & Flahault) Gomont (1895) see Genus Fischerella (Bornet and Flahault 1886) Gomont 1895