prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Bacteria" Woese et al. 1990
     Phylum "Chrysiogenetes" Garrity and Holt 2001 [monotypic]
       Class Chrysiogenetes Garrity and Holt 2002 [monotypic]
         Order Chrysiogenales Garrity and Holt 2002 [monotypic]
           Family Chrysiogenaceae Garrity and Holt 2002
             1 Genus Chrysiogenes Macy et al. 1996
             2 Genus Desulfurispira Sorokin and Muyzer 2010
             3 Genus Desulfurispirillum Sorokin et al. 2010