Methylothermus Tsubota et al. 2005 emend. Hirayama et al. 2011 non Methylothermus Tindall 2019 Methylothermus thermalis Tsubota et al. 2005 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Methylococcales Bowman 2005 Methylothermaceae (Hirayama et al. 2014) Tindall 2019 non Methylothermaceae Hirayama et al. 2014 Methylothermus Tsubota et al. 2005 emend. Hirayama et al. 2011 non Methylothermus Tindall 2019 Methylothermaceae (Hirayama et al. 2014) Tindall 2019 non Methylothermaceae Hirayama et al. 2014 Methylomarinovum Hirayama et al. 2014 Methylohalobius Heyer et al. 2005 Methylothermus thermalis Tsubota et al. 2005 Methylothermus subterraneus Hirayama et al. 2011 non Methylothermus subterraneus Hirayama et al. 2019 Tsubota J. Eshinimaev B.T.S. Khmelenina V.N. Trotsenko Y.A. Methylothermus thermalis gen. nov., sp. nov., a novel moderately thermophilic obligate methanotroph from a hot spring in Japan. 2005 55 5 1877 1884 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.63691-0 16166682 Hirayama H. Abe M. Miyazaki M. Nunoura T. Furushima Y. Yamamoto H. Takai K. Methylomarinovum caldicuralii gen. nov., sp. nov., a moderately thermophilic methanotroph isolated from a shallow submarine hydrothermal system, and proposal of the family Methylothermaceae fam. nov. 2014 64 3 989 999 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.058172-0 24425820 Hirayama H. Suzuki Y. Abe M. Miyazaki M. Makita H. Inagaki F. Uematsu K. Takai K. Methylothermus subterraneus sp. nov., a moderately thermophilic methanotroph isolated from a terrestrial subsurface hot aquifer 2011 61 11 2646 2653 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.028092-0 21148670