Domain Bacteria Woese et al. 1990
   Phylum Actinobacteria Garrity and Holt 2001
     Class Actinobacteria Stackebrandt et al. 1997
       Subclass Actinobacteridae Stackebrandt et al. 1997 see Class Actinobacteria Stackebrandt et al. 1997
         Order Actinomycetales Buchanan 1917 (Approved Lists 1980)
           Suborder Micrococcineae Stackebrandt et al. 1997 see Order Micrococcales Prévot 1940 (Approved Lists 1980)
             Family Cellulomonadaceae Stackebrandt and Prauser 1991
               Genus Oerskovia Prauser et al. 1970 (Approved Lists 1980)
               Genus Rarobacter Yamamoto et al. 1988
               1 Genus Cellulomonas Bergey et al. 1923 (Approved Lists 1980)