living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryotae see Superkingdom Prokarya
     Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 stat. inval.
       Division Bacteria Murray 1974 nom. vernac. see Domain Bacteria Woese et al. 1990 stat. inval.
         "Phototrophic bacteria"
           Rhodospirillineae
             Family Rhodospirillaceae Pfennig and Trüper 1971 (Approved Lists 1980)
               Genus Rhodospirillum Molisch 1907 (Approved Lists 1980)
                 Rhodospirillum rubrum (Esmarch 1887) Molisch 1907 (Approved Lists 1980)