[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Prokaryota see Domain Prokaryota
     Class Cyanophyceae Hauck (1885) see Class Chroococcophyceae Hollerbach et al. 1953
       Order Hormogonales Atkinson 1905 see Order Nostocales Borzì (1914)
         1 Family Oscillatoriaceae Engl. (1898), nom. cons. see Family Oscillatoriaceae Engler 1898 nom. cons.
         2 Family Nostocaceae Eichler (1886) see Family Nostocaceae Eichler 1886