[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 Gammaproteobacteria Garrity et al. 2005
         Order Thiotrichales Garrity et al. 2005
           Family Thiotrichaceae Garrity et al. 2005
             Genus Beggiatoa Trevisan 1842 (Approved Lists 1980)
               Beggiatoa alba (Vaucher 1803) Trevisan 1845 (Approved Lists 1980)