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 Acidimicrobiia Norris 2013
                   Order Acidimicrobialesᵀ Stackebrandt et al. 1997
                     Family Acidimicrobiaceae Stackebrandt et al. 1997
                       Genus Acidimicrobiumᵀ Clark and Norris 1996 [monotypic]
                         1 Acidimicrobium ferrooxidansᵀ Clark and Norris 1996