Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval. - cyanobacteria see Phylum Cyanobacteriota Oren et al. 2022
   Subgroup Oscillatorian
     Genus Trichodesmium Ehrenberg ex Gomont 1892 nom. inval. see Genus Trichodesmium Ehrenberg ex Gomont 1892 nom. cons.