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
         Order Myxococcales Tchan et al. 1948 (Approved Lists 1980)
           Suborder Nannocystineae Reichenbach 2007
             Family Nannocystaceae Reichenbach 2006
               1 Genus Enhygromyxa Iizuka et al. 2003
               2 Genus Nannocystis Reichenbach 1970 (Approved Lists 1980)
               3 Genus Plesiocystis Iizuka et al. 2003
               4 Genus Pseudenhygromyxa Iizuka et al. 2013