[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   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 Streptosporangineae Ward-Rainey et al. 1997
               Family Streptosporangiaceae Goodfellow et al. 1990
                 Genus Streptosporangium Couch 1955 (Approved Lists 1980)
                   [Streptosporangium amethystogenes] Nonomura and Ohara 1960 (Approved Lists 1980)
                     Streptosporangium amethystogenes subsp. amethystogenesᵀ (Nonomura and Ohara 1960) Iinuma et al. 1996