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 Natronorubrum Xu et al. 1999
                         1 Natronorubrum aibiense Cui et al. 2006
                         2 Natronorubrum bangense Xu et al. 1999
                         3 Natronorubrum sediminis Gutiérrez et al. 2010
                         4 Natronorubrum sulfidifaciens Cui et al. 2007
                         5 Natronorubrum texcoconense Ruiz-Romero et al. 2013
                         6 Natronorubrum tibetense Xu et al. 1999