Procaryotic Genera
   Domain "Bacteria" Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum Proteobacteria Garrity and Holt 2001 nom. nud. see Phylum Proteobacteria Garrity et al. 2005 stat. inval.
       Class "Gammaproteobacteria" "Garrity and Holt 2001" nom. nud. see Class Gammaproteobacteria Garrity et al. 2005
         Order Acidithiobacillales Garrity et al. 2001 nom. ined. see Order Acidithiobacillales Garrity et al. 2005
           Family Thermithiobacillaceae nom. ined. [monotypic] see Family Thermithiobacillaceae Garrity et al. 2005
             1 Genus Thermithiobacillusᵀ Kelly and Wood 2000