living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryotae see Superkingdom Prokarya
     Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 stat. inval.
       Division Cyanophycota see Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002 stat. inval.
         Class Cyanophyceae Hauck (1885) see Class Chroococcophyceae Hollerbach et al. 1953
           Order Pleurocapsales Geitler (1925) see Order Chroococcales Ardissone (1887)
             1 Family Pleurocapsaceae Geitler (1925) see Family Hyellaceae Borzì (1914)
             2 Family Scopulonemataceae see Family Hydrococcaceae Kützing 1843
             3 Family Siphononemataceae see Subfamily Siphononematoideae
             4 Family Pascherinemataceae see Family Hyellaceae Borzì (1914)
             5 ?Family Cyanophanaceae see Family Chamaesiphonaceae Borzì (1878)
             6 Family Dermocarpaceae Geitler (1925) see Family Dermocarpaceae Geitler 1925
             7 Family Chamaesiphonaceae Borzì (1878) see Family Chamaesiphonaceae Borzì 1878