prokaryotes - bacteria see Domain Bacteria Woese et al. 1990
Count: [*] 34p;74c;164o;358f;2552g [13 Sep 2017]
   Domain "Archaea" Woese et al. 1990
  Count: [*] 5p;10c;19o;32f;129g [6 Sep 2017]
     Phylum "Euryarchaeota" Garrity and Holt 2001
    Count: [*] 8c;12o;22f;97g [6 Sep 2017]
       Class "Methanomicrobia"
      Count: [*] 3o;8f;25g [6 Sep 2017]
         1 Order Methanocellales Sakai et al. 2008 [monotypic]
        Count: [*] 1f;1g [6 Sep 2017]
         2 Order Methanomicrobiales Balch and Wolfe 1981
        Count: [*] 4f;12g [6 Sep 2017]
         3 Order Methanosarcinales Boone et al. 2002
        Count: [*] 3f;11g [6 Sep 2017]
         4 Genus Methanomassiliicoccus Dridi et al. 2012, incertae sedis
        Count: -