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.
       1 Class Acidimicrobiia Norris 2013 [monotypic]
       2 Class Actinobacteria Stackebrandt et al. 1997 nom. illeg. see Class Actinomycetes Krassilnikov 1949 (Approved Lists 1980)
       3 Class Coriobacteriia König 2013
       4 Class Nitriliruptoria Ludwig et al. 2013
       5 Class Rubrobacteria Suzuki 2013
       6 Class Thermoleophilia Suzuki and Whitman 2013 [monotypic]