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
             1 Family Corynebacteriaceae Lehmann and Neumann 1907 (Approved Lists 1980)
             2 Family Dietziaceae Rainey et al. 1997 [monotypic]
             3 Family Mycobacteriaceae Chester 1897 (Approved Lists 1980)
             4 Family Nocardiaceae Castellani and Chalmers 1919 (Approved Lists 1980)
             5 Family Segniliparaceae Butler et al. 2005 [monotypic]
             6 Family Tsukamurellaceae Rainey et al. 1997 [monotypic]
             7 Genus Hoyosella Jurado et al. 2009, incertae sedis
             8 Genus Tomitella Katayama et al. 2010, incertae sedis