Kingdom Bacteria Cavalier-Smith 2002 - bacteria see Domain Bacteria Woese et al. 1990
   Subkingdom Negibacteria Cavalier-Smith 2002 - negibacteria see Domain Bacteria Woese et al. 1990
     Infrakingdom Glycobacteria Cavalier-Smith 2002 see Domain Bacteria Woese et al. 1990
       Superdivision Exoflagellata Cavalier-Smith 2002
         Division Planctobacteria Cavalier-Smith 2002 see Phylum Planctobacteria Cavalier-Smith 2002
           1 Class Planctomycea Cavalier-Smith 2002 see Class Planctomycetacia
           2 Class Verrucomicrobiae Hedlund et al. 1998
           3 Class Chlamydiae Cavalier-Smith 2002