Domain Bacteria Woese et al. 1990
   Phylum Actinobacteria Garrity and Holt 2001
     Class Actinobacteria Stackebrandt et al. 1997
       Subclass Rubrobacteridae Rainey et al. 1997 see Class Rubrobacteria Suzuki 2013
         Order Rubrobacterales Rainey et al. 1997
           Suborder "Rubrobacterineae" Garrity & Holt, 2001
             Family Rubrobacteraceae Rainey et al. 1997
               Genus Rubrobacter Suzuki et al. 1989