procaryotes
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Actinobacteria Garrity and Holt 2001 [monotypic] see Phylum Actinobacteria Goodfellow 2012 nom. inval.
       Class Actinobacteria Stackebrandt et al. 1997 nom. illeg. see Class Actinomycetes Krassilnikov 1949 (Approved Lists 1980)
         Subclass Actinobacteridae Stackebrandt et al. 1997 see Class Actinobacteria Stackebrandt et al. 1997 nom. illeg.
           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
                 01 Genus Microbacterium Orla-Jensen 1919 (Approved Lists 1980)
                 02 Genus Agrococcus Groth et al. 1996
                 03 Genus Agromyces Gledhill and Casida 1969 (Approved Lists 1980)
                 04 Genus Aureobacterium Collins et al. 1983 see Genus Microbacterium Orla-Jensen 1919 (Approved Lists 1980)
                 05 Genus Clavibacter Davis et al. 1984
                 06 Genus Cryobacterium Suzuki et al. 1997
                 07 Genus Curtobacterium Yamada and Komagata 1972 (Approved Lists 1980)
                 08 Genus Frigoribacterium Kämpfer et al. 2000
                 09 Genus Leifsonia Evtushenko et al. 2000
                 10 Genus Rathayibacter Zgurskaya et al. 1993