Rhabdanaerobium Liu et al. 2017 Rhabdanaerobium thermarum Liu et al. 2017 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 Eubacteriales Buchanan 1917 (Approved Lists 1980) emend. Tindall 2019 Eubacteriineae Breed et al. 1944 (Approved Lists 1980) Eubacteriaceae Ludwig et al. 2010 Rhabdanaerobium Liu et al. 2017 Eubacteriaceae Ludwig et al. 2010 Pseudoramibacter Willems and Collins 1996 Anaerofustis Finegold et al. 2004 Eubacterium Prévot 1938 (Approved Lists 1980) emend. Cato et al. 1981 Garciella Miranda-Tello et al. 2003 Aminocella (sic) Ueki et al. 2015 Aminicella corrig. Ueki et al. 2015 Alkalibacter Garnova et al. 2005 Acetobacterium Balch et al. 1977 (Approved Lists 1980) Alkalibaculum Allen et al. 2010 emend. Khomyakova et al. 2020 Gallibacter Zenner et al. 2021 Rhabdanaerobium thermarum Liu et al. 2017 Liu L. Jiao J.-Y. Salam N. Zhou E.-M. Fang B.-Z. Xian W.-D. Li M.-M. Ding Y.-P. Li W.-J. Rhabdanaerobium thermarum gen. nov., sp. nov., a novel anaerobic bacterium isolated from a hot spring. 2017 67 11 4584 4588 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.002335 28945534