Procaryotic Genera
Count: [*] 25p;39c;84o;215f;1008g [28 May 2016]
   Domain "Bacteria" Woese et al. 1990
  Count: [*] 23p;31c;72o;194f;935g [28 May 2016]
     Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005
    Count: [*] 5c;34o;72f;430g [27 May 2016]
       Class "Betaproteobacteria" Garrity et al. 2001 nom. ined. see Class Betaproteobacteria Garrity et al. 2006
      Count: [*] 6o;12f;67g [27 May 2016]
         1 Order "Burkholderiales" see Order Burkholderiales Garrity et al. 2006
        Count: [*] 5f;34g [27 May 2016]
         2 Order "Hydrogenophilales" nom. inval. [monotypic] see Order Hydrogenophilales Garrity et al. 2006
        Count: [*] 1f;2g [27 May 2016]
         3 Order "Methylophilales" nom. inval. [monotypic] see Order Methylophilales Garrity et al. 2006
        Count: [*] 1f;3g [27 May 2016]
         4 Order "Neisseriales" [monotypic] see Order Neisseriales Tønjum 2006
        Count: [*] 1f;14g [27 May 2016]
         5 Order "Nitrosomonadales" see Order Nitrosomonadales Garrity et al. 2006
        Count: [*] 3f;4g [27 May 2016]
         6 Order "Rhodocyclales" [monotypic] see Order Rhodocyclales Garrity et al. 2006
        Count: [*] 1f;10g [27 May 2016]