Caldinitratiruptor Fardeau et al. 2010 Caldinitratiruptor Fardeau et al. 2010 Caldinitratiruptor microaerophilus Fardeau et al. 2010 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 Clostridiales Prévot 1953 (Approved Lists 1980) Incertae sedis 180 None 2015 Caldinitratiruptor Fardeau et al. 2010 Incertae sedis 180 None 2015 Caldinitratiruptor microaerophilus Fardeau et al. 2010 Fardeau M.-L. Barsotti V. Cayol J.-L. Guasco S. Michotey V. Joseph M. Bonin P. Ollivier B. Caldinitratiruptor microaerophilus, gen. nov., sp. nov. isolated from a French hot spring (Chaudes-Aigues, Massif Central): a novel cultivated facultative microaerophilic anaerobic thermophile pertaining to the Symbiobacterium branch within the Firmicutes 2010 14 241 247 Extremophiles: Life Under Extreme Conditions Extremophiles 1431-0651 1433-4909 10.1007/s00792-010-0302-y 20165893 Fardeau M.-L. Barsotti V. Cayol J.-L. Guasco S. Michotey V. Joseph M. Bonin P. Ollivier B. Caldinitratiruptor microaerophilus, gen. nov., sp. nov. isolated from a French hot spring (Chaudes-Aigues, Massif Central): a novel cultivated facultative microaerophilic anaerobic thermophile pertaining to the Symbiobacterium branch within the Firmicutes 2010 14 241 247 Extremophiles: Life Under Extreme Conditions Extremophiles 1431-0651 1433-4909 10.1007/s00792-010-0302-y 20165893