organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 stat. inval.
     Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval. - cyanobacteria see Phylum Cyanobacteriota Oren et al. 2022
       Class Hormogoneae Thuret (1875) - filamentous cyanobacteria see Class Hormogoneae Cavalier-Smith 2002 nom. illeg., nom. rej.
         1 Order Nostocales Borzì (1914) see Order Nostocales corrig. Borzì 1914
         2 Order Stigonematales Geitler (1925) see Order Nostocales Borzì (1914)