Carboxydothermus islandicus Novikov et al. 2011 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 Carboxydothermus Svetlichny et al. 1991 emend. Novikov et al. 2011 Carboxydothermus islandicus Novikov et al. 2011 Carboxydothermus Svetlichny et al. 1991 emend. Novikov et al. 2011 Carboxydothermus ferrireducens (Slobodkin et al. 1997) Slobodkin et al. 2006 Carboxydothermus pertinax Yoneda et al. 2012 Carboxydothermus siderophilus Slepova et al. 2009 Carboxydothermus hydrogenoformans Svetlichny et al. 1991 Carboxydothermus islandicus Novikov et al. 2011 Novikov A.A. Sokolova T.G. Lebedinsky A.V. Kolganova T.V. Bonch-Osmolovskaya E.A. Carboxydothermus islandicus sp. nov., a thermophilic, hydrogenogenic, carboxydotrophic bacterium isolated from a hot spring 2011 61 10 2532 2537 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.030288-0 21131500 Novikov A.A. Sokolova T.G. Lebedinsky A.V. Kolganova T.V. Bonch-Osmolovskaya E.A. Carboxydothermus islandicus sp. nov., a thermophilic, hydrogenogenic, carboxydotrophic bacterium isolated from a hot spring 2011 61 10 2532 2537 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.030288-0 21131500