Procaryotic Genera
   Domain "Bacteria" Woese et al. 1990
     Phylum Actinobacteria Garrity and Holt 2001 [monotypic]
       Class Actinobacteria Stackebrandt et al. 1997
         Subclass Actinobacteridae Stackebrandt et al. 1997 see Class Actinobacteria Stackebrandt et al. 1997
           Order Bifidobacteriales Stackebrandt et al. 1997
             Family Unknown Affiliation
               1 Genus Actinobispora Jiang et al. 1991 see Genus Pseudonocardia Henssen 1957 (Approved Lists 1980)
               2 Genus Actinocorallia Iinuma et al. 1994
               3 Genus Excellospora Agre and Guzeva 1975 (Approved Lists 1980) see Genus Actinomadura Lechevalier and Lechevalier 1968 (Approved Lists 1980)
               4 Genus Pelczaria Poston 1994 nom. rej.
               5 Genus Turicella Funke et al. 1994