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 stat. inval.
     Kingdom Bacteria Cavalier-Smith 1998 nom. inval. - bacteria see Kingdom Bacteria Cavalier-Smith 2002 stat. inval.
       Subkingdom Eubacteria Cavalier-Smith 1981 see Domain Bacteria Woese et al. 1990 stat. inval.
         Division Gracilicutes Gibbons and Murray 1978 (Approved Lists 1980) see Phylum Gracilicutes
           Phylum Proteobacteria Garrity and Holt 2001 nom. nud. see Phylum Proteobacteria Garrity et al. 2005 stat. inval.
             "Delta Group" see Class Deltaproteobacteria "Garrity and Holt 2001" nom. nud.
               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)