[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Thermodesulfobacteria" Garrity and Holt 2001 see Phylum Deltaproteobacteria Kuever et al., 2006
       Class Thermodesulfobacteria Hatchikian et al. 2002
         1 Order Thermodesulfobacteriales Hatchikian et al. 2002