Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005 Class "Deltaproteobacteria" Garrity et al. 2001 nom. ined. see Class Deltaproteobacteria Kuever et al. 2006 Order "Desulfobacterales" Garrity et al. 2001 nom. ined. see Order Desulfobacterales Kuever et al. 2006 1 Family "Desulfobacteraceae" Garrity et al. 2001 nom. ined. see Family Desulfobacteraceae Kuever et al. 2006 2 Family "Desulfobulbaceae" Garrity et al. 2001 nom. ined. see Family Desulfobulbaceae Kuever et al. 2006 3 Family "Nitrospinaceae" see Family Nitrospinaceae Garrity et al. 2006