Kingdom Bacteria Cavalier-Smith 2002 stat. inval. [paraphyletic?] - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Subkingdom Negibacteria Cavalier-Smith 2002 stat. inval. [paraphyletic?] - negibacteria see Domain Bacteria Woese et al. 1990 stat. inval.
     Infrakingdom Glycobacteria Cavalier-Smith 2002 stat. inval. see Domain Bacteria Woese et al. 1990 stat. inval.
       Superdivision Exoflagellata Cavalier-Smith 2002
         Division Planctobacteria Cavalier-Smith 2002 see Phylum Planctobacteria Cavalier-Smith 2002
           Class Verrucomicrobiae Hedlund et al. 1998
             Order Verrucomicrobialesᵀ Ward-Rainey et al. 1996