prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Deltaproteobacteria Kuever et al. 2006
         01 Order Bdellovibrionales Garrity et al. 2006
         02 Order Desulfarculales corrig. Kuever et al. 2006 [monotypic]
         03 Order Desulfobacterales Kuever et al. 2006
         04 Order Desulfovibrionales Kuever et al. 2006
         05 Order Desulfurellales Kuever et al. 2006 [monotypic]
         06 Order Desulfuromonadales corrig. Kuever et al. 2006
         07 Order Myxococcales Tchan et al. 1948 (Approved Lists 1980)
         08 Order Syntrophobacterales Kuever et al. 2006
         09 Family Syntrophorhabdaceae Qiu et al. 2008, incertae sedis [monotypic]
         10 Genus Deferrisoma Slobodkina et al. 2012, incertae sedis
         11 Genus Dissulfuribacter Slobodkin et al. 2013, incertae sedis