[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain "Archaea" Woese et al. 1990
     Phylum "Euryarchaeota" Garrity and Holt 2001
       Class "Methanomicrobia"
         Order Methanosarcinales Boone et al. 2002
           Family Methanosarcinaceae Balch and Wolfe 1981
             1 Genus Methanosarcina Kluyver and van Niel 1936 (Approved Lists 1980)
             2 Genus Methanococcoides Sowers and Ferry 1985
             3 Genus Methanohalobium Zhilina and Zavarzin 1988
             4 Genus Methanohalophilus Paterek and Smith 1988
             5 Genus Methanolobus König and Stetter 1983
             6 Genus Methanomethylovorans Lomans et al. 2004
             7 Genus Methanimicrococcus corrig. Sprenger et al. 2000
             8 Genus Methanosalsum Boone and Baker 2002