Butyrivibrio hungatei Kopecný et al. 2003 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 Lachnospiraceae Rainey 2010 Butyrivibrio Bryant and Small 1956 emend. Bryant 1974 (Approved Lists 1980) Butyrivibrio hungatei Kopecný et al. 2003 Butyrivibrio Bryant and Small 1956 emend. Bryant 1974 (Approved Lists 1980) Butyrivibrio crossotus Moore et al. 1976 (Approved Lists 1980) Butyrivibrio fibrisolvens Bryant and Small 1956 (Approved Lists 1980) Butyrivibrio proteoclasticus (Attwood et al. 1996) Moon et al. 2008 Butyrivibrio hungatei Kopecný et al. 2003 Kopecný J. Zorec M. Mrázek J. Kobayashi Y. Marinšek-Logar R. Butyrivibrio hungatei sp. nov. and Pseudobutyrivibrio xylanivorans sp. nov., butyrate-producing bacteria from the rumen. 2003 53 1 201 209 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.02345-0 12656174 Kopecný J. Zorec M. Mrázek J. Kobayashi Y. Marinšek-Logar R. Butyrivibrio hungatei sp. nov. and Pseudobutyrivibrio xylanivorans sp. nov., butyrate-producing bacteria from the rumen. 2003 53 1 201 209 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.02345-0 12656174