procaryotes
   Domain Archaea Woese et al. 1990
     Phylum Euryarchaeota Garrity and Holt 2001
       Class Halobacteria Grant et al. 2001 see Class Halobacteria Grant et al. 2002
         Order Halobacteriales Grant and Larsen 1989
           Family Halobacteriaceae Gibbons 1974 (Approved Lists 1980)
             Genus Natrialba Kamekura and Dyall-Smith 1995 nom. inval. see Genus Natrialba Kamekura and Dyall-Smith 1996