life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokarya see Domain Bacteria Woese et al. 1990
     Kingdom Bacteria (Cohn 1870) Cavalier-Smith 1983 - bacteria see Kingdom Bacteria Cavalier-Smith 2002
       Subkingdom Eubacteria Cavalier-Smith 1981 see Domain Bacteria Woese et al. 1990
         Division Gracilicutes Gibbons and Murray 1978 (Approved Lists 1980) see Phylum Gracilicutes
           Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005
             "Delta Group" see Class Deltaproteobacteria Garrity et al. 2001 nom. ined.
               2 Genus Bdellovibrio Stolp and Starr 1963 (Approved Lists 1980)
               3 Genus Desulfotomaculatum see Genus Desulfotomaculum Campbell and Postgate 1965 (Approved Lists 1980)
               4 Genus Desulfovibrio Kluyver and van Niel 1936 (Approved Lists 1980)
               5 Genus Desulfuromonas Pfennig and Biebl 1977 (Approved Lists 1980)
               7 "Myxobacteria" see Order Myxococcales Tchan et al. 1948 (Approved Lists 1980)