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. 2024
             Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Actinomycetota Goodfellow 2021
                 Class Actinomycetesᵀ Krassilnikov 1949 (Approved Lists 1980)
                   01 Order Acidothermales Sen et al. 2014 [monotypic]
                   02 Order Actinomycetalesᵀ Buchanan 1917 (Approved Lists 1980)
                   03 Order Bifidobacteriales Stackebrandt et al. 1997 [monotypic]
                   04 Order Catenulisporales Donadio et al. 2015
                   05 Order Cryptosporangiales Nouioui et al. 2018 [monotypic]
                   06 Order Frankiales Sen et al. 2014
                   07 Order Geodermatophilales Sen et al. 2014
                   08 Order Glycomycetales Labeda 2015 [monotypic]
                   09 Order Jatrophihabitantales Salam et al. 2020 [monotypic]
                   10 Order Jiangellales Tang et al. 2015 [monotypic]
                   11 Order Kineosporiales Kämpfer 2015 [monotypic]
                   12 Order Kitasatosporales Kämpfer 2022 [monotypic]
                   13 Order Micrococcales Prévot 1940 (Approved Lists 1980)
                   14 Order Micromonosporales Genilloud 2015 [monotypic]
                   15 Order Motilibacterales Salam et al. 2020 [monotypic]
                   16 Order Mycobacteriales Janke 1924 (Approved Lists 1980)
                   17 Order Nakamurellales Sen et al. 2014 [monotypic]
                   18 Order Propionibacteriales (Rainey et al. 1997) Patrick and McDowell 2015
                   19 Order Pseudonocardiales Labeda and Goodfellow 2015 [monotypic]
                   20 Order Sporichthyales Nouioui et al. 2018 [monotypic]
                   21 Order Streptosporangiales Goodfellow 2015