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 Eobacteria Cavalier-Smith 2002 stat. inval. see Domain Bacteria Woese et al. 1990 stat. inval.
       Division Eobacteria Cavalier-Smith 2002 stat. inval. see Phylum Eobacteria Cavalier-Smith 2002 stat. inval.
         1 Class Chlorobacteria Cavalier-Smith 2002 nom. illeg., nom. rej.
         2 Class Hadobacteria Cavalier-Smith 2002 nom. illeg., nom. rej.