Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Archaea Woese et al. 1990 [paraphyletic]
               Phylum Euryarchaeota Garrity and Holt 2001
                 Class Halobacteria Grant et al. 2002 [monotypic]
                   Order Natrialbales Gupta et al. 2015 [monotypic]
                     Family Natrialbaceaeᵀ Gupta et al. 2015
                       Genus Natrialbaᵀ Kamekura and Dyall-Smith 1996
                         1 Natrialba aegyptia corrig. Hezayen et al. 2001
                         2 Natrialba asiatica Kamekura and Dyall-Smith 1996
                         3 Natrialba chahannaoensis Xu et al. 2001
                         4 Natrialba hulunbeirensis Xu et al. 2001
                         5 Natrialba magadii (Tindall et al. 1984) Kamekura et al. 1997
                         6 Natrialba taiwanensis Hezayen et al. 2001