Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Domain "Bacteria" Woese et al. 1990 stat. inval. [paraphyletic?]] see Domain Bacteria Woese et al. 2024
             [Superphylum "Terrabacteria" Battistuzzi et al. 2004 nom. nud.]
               [Phylum "Actinobacteria" Goodfellow 2012 nom. inval.] see Phylum Actinomycetota Goodfellow 2021
                 [Class Actinobacteriaᵀ Stackebrandt et al. 1997 nom. illeg.] see Class Actinomycetes Krassilnikov 1949 (Approved Lists 1980)
                   0 [Subclass Actinobacteridaeᵀ Stackebrandt et al. 1997] see Class Actinobacteria Stackebrandt et al. 1997 nom. illeg.
                   1 Genus †Actinomycites D. Ellis (1916), incertae sedis
                   n1 [Subclass Nitriliruptoridae Kurahashi et al. 2010] see Class Nitriliruptoria Ludwig et al. 2013
                   n2 [Subclass Acidimicrobidae Stackebrandt et al. 1997 [monotypic]] see Class Acidimicrobiia Norris 2013
                   n3 [Subclass Coriobacteridae Stackebrandt et al. 1997 [monotypic]] see Class Coriobacteriia König 2013
                   n4 [Subclass Rubrobacteridae Rainey et al. 1997] see Class Rubrobacteria Suzuki 2013