Ruminiclostridium papyrosolvens (Madden et al. 1982) 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 papyrosolvens (Madden et al. 1982) Zhang et al. 2018 Ruminiclostridium Zhang et al. 2018 non Ruminiclostridium Yutin and Galperin 2013 Ruminiclostridium cellobioparum (Hungate 1944) Zhang et al. 2018 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 sufflavum (Nishiyama et al. 2009) Zhang et al. 2018 Ruminiclostridium herbifermentans Rettenmaier et al. 2021 Clostridium papyrosolvens Madden et al. 1982 Ruminiclostridium papyrosolvens (Madden et al. 1982) Zhang et al. 2018 Madden R.H. Bryder M.J. Poole N.J. Isolation and characterization of an anaerobic, cellulolytic bacterium, Clostridium papyrosolvens sp. nov. 1982 32 1 87 91 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-32-1-87 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 Nishiyama T. Ueki A. Kaku N. Ueki K. Clostridium sufflavum sp. nov., isolated from a methanogenic reactor treating cattle waste. 2009 59 5 981 986 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.001719-0 19406778 Liolios K. Chen I.M. Mavromatis K. Tavernarakis N. Hugenholtz P. Markowitz V.M. Kyrpides N.C. The Genomes On Line Database (GOLD) in 2009: status of genomic and metagenomic projects and their associated metadata 2010 38 D346 354 Nucleic Acids Research Nucleic Acids Res. 0305-1048 1362-4962 10.1093/nar/gkp848 19914934 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