Acetogenium kivui Leigh and Wolfe 1983 Acetogenium kivui Leigh and Wolfe 1983 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Firmicutes (sic) Gibbons and Murray 2021 Bacillota corrig. Gibbons and Murray 2021 Firmacutes (sic) Gibbons and Murray 2021 Clostridia Rainey 2010 Thermoanaerobacterales (Garrity and Holt 2001) Wiegel 2010 emend. Lv et al. 2020 Thermoanaerobacteraceae (Garrity and Holt 2001) Wiegel 2010 Thermoanaerobacter Wiegel and Ljungdahl 1982 emend. Lee et al. 2007 Acetogenium kivui Leigh and Wolfe 1983 Thermoanaerobacter Wiegel and Ljungdahl 1982 emend. Lee et al. 2007 Thermoanaerobacter kivui (Leigh and Wolfe 1983) Collins et al. 1994 Acetogenium kivui Leigh and Wolfe 1983 Leigh J.A. Wolfe R.S. Acetogenium kivui gen. nov., sp. nov., a thermophilic, acetogenic bacterium. 1983 33 4 886 886 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-33-4-886 Rainey F.A. Ward N.L. Morgan H.W. Toalster R. Stackebrandt E. Phylogenetic Analysis of Anaerobic Thermophilic Bacteria: Aid for Their Reclassification 1993 175 4772 4779 Journal of Bacteriology J Bacteriol 0021-9193 1098-5530 7687600 Collins M.D. Lawson P.A. Willems A. Cordoba J.J. Fernandez-Garayzabal J. Garcia P. Cai J. Hippe H. Farrow J.A.E. The phylogeny of the genus Clostridium: proposal of five new genera and eleven new species combinations. 1994 44 4 812 826 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-44-4-812 7981107 Leigh J.A. Wolfe R.S. Acetogenium kivui gen. nov., sp. nov., a thermophilic, acetogenic bacterium. 1983 33 4 886 886 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-33-4-886 Thermoanaerobacter kivui (Leigh and Wolfe 1983) Collins et al. 1994 Leigh J.A. Wolfe R.S. Acetogenium kivui gen. nov., sp. nov., a thermophilic, acetogenic bacterium. 1983 33 4 886 886 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-33-4-886 Collins M.D. Lawson P.A. Willems A. Cordoba J.J. Fernandez-Garayzabal J. Garcia P. Cai J. Hippe H. Farrow J.A.E. The phylogeny of the genus Clostridium: proposal of five new genera and eleven new species combinations. 1994 44 4 812 826 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-44-4-812 7981107