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
         Order Halobacteriales Grant and Larsen 1989 [monotypic]
           Family Halobacteriaceae Gibbons 1974 (Approved Lists 1980)
             Genus Halapricum Song et al. 2014