prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Actinobacteria" Garrity and Holt 2001
       Class Actinobacteria Stackebrandt et al. 1997
         Order Actinomycetales Buchanan 1917 (Approved Lists 1980)
           Suborder Corynebacterineae Stackebrandt et al. 1997
             Family Nocardiaceae Castellani and Chalmers 1919 (Approved Lists 1980)
               Genus Rhodococcus Zopf 1891 (Approved Lists 1980)