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]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum "Proteobacteria" Craig et al. 2010
               Phylum "Gammaproteobacteria" Garrity et al., 2005 [monotypic]
                 Class Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Chromatiales Imhoff 2005
                     Family Ectothiorhodospiraceae Imhoff 1984
                       Genus Halorhodospira Imhoff and Süling 1997
                         1 Halorhodospira abdelmalekii (Imhoff and Trüper 1982) Imhoff and Süling 1997
                         2 Halorhodospira halochloris (Imhoff and Trüper 1979) Imhoff and Süling 1997
                         3 Halorhodospira halophila (Raymond and Sistrom 1969) Imhoff and Süling 1997
                         4 Halorhodospira neutriphila Hirschler-Réa et al. 2003