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 stat. inval. Phylum "chemoautotrophic bacteria" Class "oxidizers of sulfur compounds" see Order Thiotrichales "Garrity and Holt 2001" nom. nud. Genus Thiospira Visloukh 1914 (Approved Lists 1980)