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 Myxococcales Tchan et al. 1948 (Approved Lists 1980)
           1 Family Myxococcaceae Jahn 1924 (Approved Lists 1980)
           2 Family Archangiaceae Jahn 1924 (Approved Lists 1980) [monotypic] see Family Cystobacteraceae McCurdy 1970 (Approved Lists 1980)
           3 Family Cystobacteraceae McCurdy 1970 (Approved Lists 1980)
           4 Family Polyangiaceae Jahn 1924 (Approved Lists 1980)