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 Microbacteriaceae Park et al. 1995
               Genus Agrococcus Groth et al. 1996
               Genus Agromyces Gledhill and Casida 1969 (Approved Lists 1980)
               Genus Aureobacterium Collins et al. 1983 see Genus Microbacterium Orla-Jensen 1919 (Approved Lists 1980)
               Genus Clavibacter Davis et al. 1984
               Genus Cryobacterium Suzuki et al. 1997
               Genus Curtobacterium Yamada and Komagata 1972 (Approved Lists 1980)
               Genus Frigoribacterium Kämpfer et al. 2000
               Genus Leifsonia Evtushenko et al. 2000
               Genus Rathayibacter Zgurskaya et al. 1993
               1 Genus Microbacterium Orla-Jensen 1919 (Approved Lists 1980)