Kingdom Bacteria Cavalier-Smith 2002 stat. inval. [paraphyletic?] - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Subkingdom Unibacteria Cavalier-Smith 2002 [paraphyletic?] see Domain Bacteria Woese et al. 1990 stat. inval.
     Division Posibacteria Cavalier-Smith 2002 [paraphyletic?]
       Subdivision Actinobacteria Cavalier-Smith 2002 [paraphyletic?] see Phylum Actinobacteria Garrity and Holt 2001
         Class Arabobacteria Cavalier-Smith 2002 nom. rej.
           1 Order Actinoplanales Cavalier-Smith 2002 nom. rej. see Order Actinomycetales Buchanan 1917 (Approved Lists 1980)
           2 Order Mycobacterialesᵀ Cavalier-Smith 2002 nom. illeg. see Order Mycobacteriales Janke 1924 nom. inval.