[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Deltaproteobacteria Kuever et al. 2006
         Order Desulfobacterales Kuever et al. 2006
           Family Nitrospinaceae Garrity et al. 2006
             1 Genus Nitrospina Watson and Waterbury 1971 (Approved Lists 1980)