Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998 Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998 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 Methanosarcinales Boone et al. 2002 Methanosaetaceae Boone et al. 2002 Methanosaeta Patel and Sprott 1990 Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998 Methanosaeta Patel and Sprott 1990 Methanosaeta thermoacetophila (Nozhevnikova and Chudina 1988) Patel and Sprott 1990 Methanosaeta harundinacea Ma et al. 2006 Methanosaeta concilii (Patel 1985) Patel and Sprott 1990 Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998 Methanothrix thermophila Kamagata et al. 1992 Kamagata Y. Kawasaki H. Oyaizu H. Nakamura K. Mikami E. Endo G. Koga Y. Yamasato K. Characterization of three thermophilic strains of Methanothrix (Methanosaeta) thermophila sp. nov. and rejection of Methanothrix (Methanosaeta) thermoacetophila. 1992 42 3 463 468 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-42-3-463 1380291 Boone D.R. Kamagata Y. Rejection of the species Methanothrix soehngenii (VP) and the genus Methanothrix (VP) as nomina confusa, and transfer of Methanothrix thermophila (VP) to the genus Methanosaeta (VP) as Methanosaeta thermophila comb. nov. Request for an Opinion. 1998 48 3 1079 1080 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-48-3-1079 Methanosaeta thermoacetophila (Nozhevnikova and Chudina 1988) Patel and Sprott 1990 Methanothrix thermophila Kamagata et al. 1992 Tindall B.J. Challenging Opinion 75. 2008 58 7 1768 1771 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.2008/005363-0 18599733 Huser B.A. Wuhrmann K. Zehnder A.J.B. Methanothrix soehngenii gen. nov., sp. nov., a new acetophilic, non-hydrogen oxidizing methane bacterium 1982 132 1 9 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/BF00690808 Boone D.R. Kamagata Y. Rejection of the species Methanothrix soehngenii (VP) and the genus Methanothrix (VP) as nomina confusa, and transfer of Methanothrix thermophila (VP) to the genus Methanosaeta (VP) as Methanosaeta thermophila comb. nov. Request for an Opinion. 1998 48 3 1079 1080 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-48-3-1079 Wayne L.G. Actions of the Judicial Commission of the International Committee on Systematic Bacteriology on Requests for Opinions published between January 1985 and July 1993. 1994 44 1 177 178 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-44-1-177 Judicial Commision of the International Committee on Systematics of Prokaryotes. Rejection of the genus name Methanothrix with the species Methanothrix soehngenii Huser et al. 1983 and transfer of Methanothrix thermophila Kamagata et al. 1992 to the genus Methanosaeta as Methanosaeta thermophila comb. nov. Opinion 75. 2008 58 7 1753 1754 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.2008/005355-0 18599729 Kamagata Y. Kawasaki H. Oyaizu H. Nakamura K. Mikami E. Endo G. Koga Y. Yamasato K. Characterization of three thermophilic strains of Methanothrix (Methanosaeta) thermophila sp. nov. and rejection of Methanothrix (Methanosaeta) thermoacetophila. 1992 42 3 463 468 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-42-3-463 1380291 Garrity G.M. Labeda D.P. Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes; XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey 2011 61 11 2775 2780 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.037366-0 Judicial Commission of the International Committee on Systematics of Prokaryotes The genus name Methanothrix Huser et al. 1983 and the species combination Methanothrix soehngenii Huser et al. 1983 do not contravene Rule 31a and are not to be considered as rejected names, the genus name Methanosaeta Patel and Sprott 1990 refers to the same taxon as Methanothrix soehngenii Huser et al. 1983 and the species combination Methanothrix thermophila Kamagata et al. 1992 is rejected: Supplementary information to Opinion 75. 2014 64 10 3597 3598 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.069252-0 25288667 Methanosaeta thermophila was created in Opinion 75 as a new combination of Methanothrix thermophila. However, an emendation to Opinion 75 rejected Methanothrix thermophila as it contravenes Rule 51b. As a result, Methanosaeta thermophila also contravenes Rule 51b so is rejected.