[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Proteobacteria" Garrity et al. 2005 stat. inval. see Phylum Pseudomonadota Garrity et al. 2021
       Class Gammaproteobacteria Garrity et al. 2005
         Order Acidithiobacillales Garrity et al. 2005
           Family Thermithiobacillaceae Garrity et al. 2005
             Genus Thermithiobacillus Kelly and Wood 2000
               Thermithiobacillus tepidarius (Wood and Kelly 1985) Kelly and Wood 2000