Hungateiclostridium clariflavum (Shiratori et al. 2009) 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 Eubacteriales Buchanan 1917 (Approved Lists 1980) emend. Tindall 2019 Oscillospiraceae Peshkoff 1940 (Approved Lists 1980) emend. Tindall 2019 Acetivibrio Patel et al. 1980 emend. Tindall 2019 Hungateiclostridium clariflavum (Shiratori et al. 2009) Zhang et al. 2018 Acetivibrio Patel et al. 1980 emend. Tindall 2019 Hungateiclostridium thermocellum (Viljoen et al. 1926) Zhang et al. 2018 Hungateiclostridium cellulolyticum (Patel et al. 1980) Zhang et al. 2018 Hungateiclostridium aldrichii (Yang et al. 1990) Zhang et al. 2018 Hungateiclostridium alkalicellulosi (Zhilina et al. 2006) Zhang et al. 2018 Hungateiclostridium straminisolvens (Kato et al. 2004) Zhang et al. 2018 Hungateiclostridium saccincola (Koeck et al. 2016) Zhang et al. 2018 Hungateiclostridium mesophilum Rettenmaier et al. 2019 Clostridium clariflavum Shiratori et al. 2009 Hungateiclostridium clariflavum (Shiratori et al. 2009) Zhang et al. 2018 Ruminiclostridium clariflavum (Shiratori et al. 2009) Yutin and Galperin 2013 Acetivibrio clariflavus (Shiratori et al. 2009) Tindall 2019 Shiratori H. Sasaya K. Ohiwa H. Ikeno H. Ayame S. Kataoka N. Miya A. Beppu T. Ueda K. Clostridium clariflavum sp. nov. and Clostridium caenicola sp. nov., moderately thermophilic, cellulose-/cellobiose-digesting bacteria isolated from methanogenic sludge 2009 59 7 1764 1770 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.003483-0 19542130 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 Izquierdo J.A. Goodwin L. Davenport K.W. Teshima H. Bruce D. Detter C. Tapia R. Han S. Land M. Hauser L. Jeffries C.D. Han J. Pitluck S. Nolan M. Chen A. Huntemann M. Mavromatis K. Mikhailova N. Liolios K. Woyke T. Lynd L.R. Complete Genome Sequence of Clostridium clariflavum DSM 19732 2012 6 104 115 Standards in Genomic Sciences Stand Genomic Sci 1944-3277 10.4056/sigs.2535732 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 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