Methanosarcina mazei (Barker 1936) Mah and Kuhn 1984 Methanococcus mazei Barker 1936 (Approved Lists 1980) Mah R.A. Kuhn D.A. Transfer of the type species of the genus Methanococcus to the genus Methanosarcina naming it Methanosarcina mazei (Barker 1936) comb. nov. et emend. and conservation of the genus Methanococcus (Approved List 1980) with Methanococcus vannielii (Approved List 1980) as the type species: Request for an Opinion. 1984 34 2 263 265 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-34-2-263