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 Streptosporangineae (sic) Ward-Rainey et al. 1997 see Suborder Streptosporangiineae corrig. Ward-Rainey et al. 1997
               Family Streptosporangiaceae Goodfellow et al. 1990
                 1 Genus Streptosporangium Couch 1955 (Approved Lists 1980)
                 2 Genus Herbidospora Kudo et al. 1993
                 3 Genus Microbispora Nonomura and Ohara 1957 (Approved Lists 1980)
                 4 Genus Microtetraspora Thiemann et al. 1968 (Approved Lists 1980)
                 5 Genus Nonomuraea corrig. Zhang et al. 1998
                 6 Genus Planobispora Thiemann and Beretta 1968 (Approved Lists 1980)
                 7 Genus Planomonospora Thiemann et al. 1967 (Approved Lists 1980)
                 8 Genus Planopolyspora Petrolini et al. 1993 see Genus Catenuloplanes Yokota et al. 1993
                 9 Genus Planotetraspora Runmao et al. 1993