Procaryotic Genera
Count: [*] 25p;39c;84o;215f;1008g [28 May 2016]
   Domain "Archaea" Woese et al. 1990
  Count: [*] 2p;8c;12o;21f;73g [26 May 2016]
     Phylum Euryarchaeota Garrity and Holt 2001
    Count: [*] 7c;9o;16f;50g [26 May 2016]
       Class Methanopyri Garrity and Holt 2001 nom. inval. [monotypic] see Class Methanopyri Garrity and Holt 2002
      Count: [*] 1o;1f;1g [26 May 2016]
         Order Methanopyralesᵀ Huber and Stetter 2001 nom. inval. [monotypic] see Order Methanopyrales Huber and Stetter 2002
        Count: [*] 1f;1g [26 May 2016]
           1 Family Methanopyraceae Huber and Stetter 2001 nom. inval. [monotypic] see Family Methanopyraceae Huber and Stetter 2002
          Count: [*] 1g [26 May 2016]