Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum "Actinobacteria" Garrity and Holt 2001
                 Class Actinobacteriaᵀ Stackebrandt et al. 1997
                   Order Actinomycetalesᵀ Buchanan 1917 (Approved Lists 1980)
                     Suborder Streptomycineae Rainey et al. 1997 [monotypic]
                       Family Streptomycetaceaeᵀ Waksman and Henrici 1943 (Approved Lists 1980)
                         Genus Streptomycesᵀ Waksman and Henrici 1943 (Approved Lists 1980)
                           Streptomyces helvaticus (Krasil'nikov et al. 1965) Pridham 1970 (Approved Lists 1980)