Ruminiclostridium cellobioparum (Hungate 1944) Zhang et al. 2018 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) Hungateiclostridiaceae Zhang et al. 2018 Ruminiclostridium Zhang et al. 2018 non Ruminiclostridium Yutin and Galperin 2013 Ruminiclostridium cellobioparum (Hungate 1944) Zhang et al. 2018 Ruminiclostridium Zhang et al. 2018 non Ruminiclostridium Yutin and Galperin 2013 Ruminiclostridium cellulolyticum (Petitdemange et al. 1984) Zhang et al. 2018 Ruminiclostridium hungatei (Monserrate et al. 2001) Zhang et al. 2018 Ruminiclostridium josui (Sukhumavasi et al. 1988) Zhang et al. 2018 Ruminiclostridium papyrosolvens (Madden et al. 1982) Zhang et al. 2018 Ruminiclostridium sufflavum (Nishiyama et al. 2009) Zhang et al. 2018 Ruminiclostridium herbifermentans Rettenmaier et al. 2021 Ruminiclostridium cellobioparum cellobioparum (Hungate 1944) Zhang et al. 2018 Ruminiclostridium cellobioparum termitidis (Hethener et al. 1992) Zhang et al. 2018 Ruminiclostridium cellobioparum (Hungate 1944) Zhang et al. 2018 Clostridium cellobioparum Hungate 1944 (Approved Lists 1980) Ruminiclostridium cellobioparum cellobioparum (Hungate 1944) Zhang et al. 2018 Monserrate E. Leschine S.B. Canale-Parola E. Clostridium hungatei sp. nov., a mesophilic, N(2)-fixing cellulolytic bacterium isolated from soil. 2001 51 1 123 132 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-1-123 11211249 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225 Zhang X. Tu B. Dai L.-R. Lawson P.A. Zheng Z.-Z. Liu L.-Y. Deng Y. Zhang H. Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. 2018 68 10 3197 3211 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.002966 30124399 Yutin N. Galperin M.Y. A genomic update on clostridial phylogeny: Gram-negative spore formers and other misplaced clostridia. 2013 15 10 2631 2641 Environmental Microbiology Environ Microbiol 1462-2912 1462-2920 10.1111/1462-2920.12173 23834245 Zhang X. Tu B. Dai L.-R. Lawson P.A. Zheng Z.-Z. Liu L.-Y. Deng Y. Zhang H. Cheng L. Petroclostridium xylanilyticum gen. nov., sp. nov., a xylan-degrading bacterium isolated from an oilfield, and reclassification of clostridial cluster III members into four novel genera in a new Hungateiclostridiaceae fam. nov. 2018 68 10 3197 3211 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.002966 30124399