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?]
             Phylum "Epsilonproteobacteria" Garrity et al., 2006
               Class Epsilonproteobacteriaᵀ Garrity et al. 2006
                 Order Campylobacterales Garrity et al. 2006
                   Family Campylobacteraceaeᵀ Vandamme and De Ley 1991
                     Genus Sulfurospirillum Schumacher et al. 1993
                       1 Sulfurospirillum arcachonense Finster et al. 1997
                       2 Sulfurospirillum arsenophilum Stolz et al. 1999
                       3 Sulfurospirillum barnesii Stolz et al. 1999
                       4 Sulfurospirillum cavolei Kodama et al. 2007
                       5 Sulfurospirillum deleyianumᵀ Schumacher et al. 1993
                       6 Sulfurospirillum halorespirans Luijten et al. 2003
                       7 Sulfurospirillum multivorans (Scholz-Muramatsu et al. 2002) Luijten et al. 2003