Exilispira Imachi et al. 2008 Exilispira thermophila Imachi et al. 2008 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Spirochaetota corrig. Garrity and Holt 2021 Spirochaetes (sic) Garrity and Holt 2021 non Spirochaetes Cavalier-Smith 2002 Spirochaetia (Cavalier-Smith 2002) Paster 2020 Spirochaetales Buchanan 1917 (Approved Lists 1980) emend. Hördt et al. 2020 Incertae sedis 31 None 2015 Exilispira Imachi et al. 2008 Incertae sedis 31 None 2015 Exilispira thermophila Imachi et al. 2008 Imachi H. Sakai S. Hirayama H. Nakagawa S. Nunoura T. Takai K. Horikoshi K. Exilispira thermophila gen. nov., sp. nov., an anaerobic, thermophilic spirochaete isolated from a deep-sea hydrothermal vent chimney. 2008 58 10 2258 2265 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.65727-0 18842837