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 Nakamurellales Sen et al. 2014 [monotypic]
           Family Nakamurellaceae Tao et al. 2004
             Genus Saxeibacter Lee et al. 2008 see Genus Nakamurella Tao et al. 2004