Methanogenium bourgense Ollivier et al. 1986 Universal Root Woese et al. 1990 Archaea Woese et al. 1990 Euryarchaeota (sic) Garrity and Holt 2001 Methanobacteriota corrig. Garrity and Holt 2001 Methanococci Boone 2002 Methanomicrobiales Balch and Wolfe 1981 Methanomicrobiaceae Balch and Wolfe 1981 Methanogenium Romesser et al. 1981 emend. Spring et al. 2005 Methanogenium bourgense Ollivier et al. 1986 Methanogenium Romesser et al. 1981 emend. Spring et al. 2005 Methanogenium aggregans Ollivier et al. 1985 Methanogenium marisnigri Romesser et al. 1981 Methanogenium tationis Zabel et al. 1986 Methanogenium thermophilicum Rivard and Smith 1982 emend. Zabel et al. 1985 Methanogenium liminatans Zellner et al. 1990 Methanogenium organophilum Widdel et al. 1989 Methanogenicum olentangyi (sic) Corder et al. 1988 Methanogenium olentangyi corrig. Corder et al. 1988 Methanogenium frittonii Harris et al. 1996 Methanogenium marinum Chong et al. 2003 Methanogenium frigidum Franzmann et al. 1997 Methanogenium cariaci Romesser et al. 1981 emend. Maestrojuán et al. 1990 Methanoculleus bourgense (sic) (Ollivier et al. 1986) Maestrojuán et al. 1990 emend. Asakawa and Nagaoka 2003 Methanoculleus bourgensis corrig. (Ollivier et al. 1986) Maestrojuán et al. 1990 emend. Asakawa and Nagaoka 2003 Methanogenium bourgense Ollivier et al. 1986 Maestrojuán G.M. Boone D.R. Xun L. Mah R.A. Zhang L. Transfer of Methanogenium bourgense, Methanogenium marisnigri, Methanogenium olentangyi, and Methanogenium thermophilicum to the genus Methanoculleus gen. nov., emendation of Methanoculleus marisnigri and Methanogenium, and description of new strains of Methanoculleus bourgense and Methanoculleus marisnigri. 1990 40 2 117 122 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-40-2-117 Wright A-D.G. Pimm C. Improved strategy for presumptive identification of methanogens using 16S riboprinting 2003 55 2 337 349 Journal of Microbiological Methods J Microbiol Methods 0167-7012 10.1016/S0167-7012(03)00169-6 14529955 Ollivier B. Mah R.A. Garcia J.L. Boone D.R. Isolation and characterization of Methanogenium bourgense sp. nov. 1986 36 2 297 301 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-36-2-297 Ollivier B. Mah R.A. Garcia J.L. Boone D.R. Isolation and characterization of Methanogenium bourgense sp. nov. 1986 36 2 297 301 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-36-2-297