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]
         Order Methanosarcinales Boone et al. 2002
        Count: [*] 3f;11g [6 Sep 2017]
           Family Methanosarcinaceae Balch and Wolfe 1981
          Count: [*] 9g [6 Sep 2017]
             Genus Methanosarcina Kluyver and van Niel 1936 (Approved Lists 1980)
            Count: -