prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Actinobacteria" Garrity and Holt 2001 see Phylum Actinobacteria Goodfellow 2012 nom. inval.
       Class Actinobacteria Stackebrandt et al. 1997 nom. illeg. see Class Actinomycetes Krassilnikov 1949 (Approved Lists 1980)
         1 Order Acidothermales Sen et al. 2014 [monotypic]
         2 Order Actinomycetales Buchanan 1917 (Approved Lists 1980)
         3 Order Bifidobacteriales Stackebrandt et al. 1997 [monotypic]
         4 Order Frankiales Sen et al. 2014
         5 Order Geodermatophilales Sen et al. 2014 [monotypic]
         6 Order Kineosporiales Kämpfer 2015 [monotypic]
         7 Order Micrococcales Prévot 1940 (Approved Lists 1980)
         8 Order Nakamurellales Sen et al. 2014 [monotypic]
         9 Order Nitriliruptorales Sorokin et al. 2009 [monotypic]