[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 Betaproteobacteria Garrity et al. 2006
         Order Burkholderiales Garrity et al. 2006
           Genus Sphaerotilus Kützing 1833 (Approved Lists 1980)
             1 Sphaerotilus natans Kützing 1833 (Approved Lists 1980)