prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 stat. inval.
   Domain "Archaea" Woese et al. 1990 stat. inval. see Domain Archaea Woese et al. 2024
     Phylum "Euryarchaeota" Garrity and Holt 2002 stat. inval. see Kingdom Methanobacteriati (Garrity and Holt 2023) Oren and Göker 2024
       Class Halobacteria Grant et al. 2002
         Order Natrialbales Gupta et al. 2015 [monotypic] see Order Halobacteriales Grant and Larsen 1989
           Family Natrialbaceae Gupta et al. 2015
             Genus Natronorubrum Xu et al. 1999