[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 Aquabacterium Kalmbach et al. 1999
             1 Aquabacterium commune Kalmbach et al. 1999
             2 Aquabacterium citratiphilum Kalmbach et al. 1999
             3 Aquabacterium parvum Kalmbach et al. 1999