prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
   Domain "Archaea" Woese et al. 1990
     Phylum "Euryarchaeota" Garrity and Holt 2001
       Class Halobacteria Grant et al. 2002
         1 Order Halobacteriales Grant and Larsen 1989 [monotypic]
         2 Order Haloferacales Gupta et al. 2015 [monotypic]
         3 Order Natrialbales Gupta et al. 2015 [monotypic]