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 Pseudonocardineae (sic) Stackebrandt et al. 1997 see Suborder Pseudonocardiineae corrig. Stackebrandt et al. 1997
               Family Pseudonocardiaceae Embley et al. 1989
                 01 Genus Pseudonocardia Henssen 1957 (Approved Lists 1980)
                 02 Genus Actinopolyspora Gochnauer et al. 1975 (Approved Lists 1980)
                 03 Genus Amycolatopsis Lechevalier et al. 1986
                 04 Genus Kibdelosporangium Shearer et al. 1986
                 05 Genus Kutzneria Stackebrandt et al. 1994
                 06 Genus Prauserella Kim and Goodfellow 1999
                 07 Genus Saccharomonospora Nonomura and Ohara 1971 (Approved Lists 1980)
                 08 Genus Saccharopolyspora Lacey and Goodfellow 1975 (Approved Lists 1980)
                 09 Genus Streptoalloteichus (ex Tomita et al. 1978) Tomita et al. 1987
                 10 Genus Thermobispora Wang et al. 1996
                 11 Genus Thermocrispum Korn-Wendisch et al. 1995