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.
       Division Sphingobacteria Cavalier-Smith 2002
         Class Chlorobea Cavalier-Smith 2002 nom. rej. [monotypic]
           Order Chlorobialesᵀ Gibbons and Murray 1978 (Approved Lists 1980)
             Genus Chlorobium Nadson 1906 (Approved Lists 1980)