organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990
     Phylum "chemoautotrophic bacteria"
       Class "oxidizers of sulfur compounds" see Order Thiotrichales
         1 Genus Thiobacterium (ex Janke 1924) La Riviere and Kuenen 1989
         2 Genus Macromonas Utermöhl and Koppe 1924 (Approved Lists 1980)
         4 Genus Thiospira Visloukh 1914 (Approved Lists 1980)
         5 Genus Thiobacillus Beijerinck 1904 (Approved Lists 1980)
         6 Genus Sulfolobus Brock et al. 1972 (Approved Lists 1980)