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)
                   Order Actinomycetalesᵀ Buchanan 1917 (Approved Lists 1980)
                     Family Actinomycetaceaeᵀ Buchanan 1918 (Approved Lists 1980)
                       Genus Actinomycesᵀ Harz 1877 (Approved Lists 1980)
                         Actinomyces meyeri (ex Prévot 1938) Cato et al. 1984