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
       Division Cyanophycota see Phylum Cyanobacteria (ex Stanier 1974) Cavalier-Smith 2002
         Class Cyanophyceae Schaffner (1909) see Class Cyanobacteria Cavalier-Smith, 2002
           Order Chroococcales Wettst. (1924)
             1 Family Chroococcaceae Nägeli (1849)
             2 Family Tubiellaceae see Family Synechococcaceae Komárek & Anagnostidis (1995)
             3 Family Entophysalidaceae Geitler (1925)