Pseudoclostridium thermosuccinogenes (Drent et al. 1995) Zhang et al. 2018 Pseudoclostridium thermosuccinogenes (Drent et al. 1995) 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 Pseudoclostridium Zhang et al. 2018 Pseudoclostridium thermosuccinogenes (Drent et al. 1995) Zhang et al. 2018 Pseudoclostridium Zhang et al. 2018 Ruminiclostridium thermosuccinogenes (Drent et al. 1995) Yutin and Galperin 2013 Clostridium thermosuccinogenes Drent et al. 1995 Pseudoclostridium thermosuccinogenes (Drent et al. 1995) Zhang et al. 2018 List Editor Validation List no. 55. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1995 45 4 879 880 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-45-4-879 Stackebrandt E. Kramer I. Swiderski J. Hippe H. Phylogenetic basis for a taxonomic dissection of the genus Clostridium 1999 24 253 258 FEMS Immunology and Medical Microbiology FEMS Immunol Med Microbiol 0928-8244 10397308 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 This strain was encumbered by patents WO1991013996A1 (PCT/NL91/00038, March 13, 1991) and US49340890A (provisional, March 14, 1990). These patents have since expired. 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 Clostridium thermosuccinogenes Drent et al. 1995 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 Tindall B.J. The names Hungateiclostridium Zhang et al. 2018, 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 clariflavum (Shiratori et al. 2009) Zhang et al. 2018, Hungateiclostridium straminisolvens (Kato et al. 2004) Zhang et al. 2018 and Hungateiclostridium saccincola (Koeck et al. 2016) Zhang et al. 2018 contravene Rule 51b of the International Code of Nomenclature of Prokaryotes and require replacement names in the genus Acetivibrio Patel et al. 1980. 2019 69 12 3927 3932 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003685 31526446 The nomenclatural type of this name is deposited in only one culture collection not at least two as required by Rule 30 3(b).