Hyperthermus butylicus Zillig et al. 1991 Hyperthermus butylicus Zillig et al. 1991 Universal Root Woese et al. 1990 Archaea Woese et al. 1990 Crenarchaeota (sic) Garrity and Holt 2021 Thermoproteota corrig. Garrity and Holt 2021 Thermoprotei Reysenbach 2002 Desulfurococcales Huber and Stetter 2002 Pyrodictiaceae Burggraf et al. 1997 Hyperthermus Zillig et al. 1991 Hyperthermus butylicus Zillig et al. 1991 Hyperthermus Zillig et al. 1991 Hyperthermus butylicus Zillig et al. 1991 Zillig W. Holz I. Wunderl S. Hyperthermus butylicus gen. nov., sp. nov., a hyperthermophilic, anaerobic, peptide-fermenting, facultatively H2S-generating archaeobacterium. 1991 41 1 169 170 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-41-1-169 Burggraf S. Huber H. Stetter K.O. Reclassification of the crenarchael orders and families in accordance with 16S rRNA sequence data. 1997 47 3 657 660 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-47-3-657 9226896 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 Zillig W. Holz I. Wunderl S. Hyperthermus butylicus gen. nov., sp. nov., a hyperthermophilic, anaerobic, peptide-fermenting, facultatively H2S-generating archaeobacterium. 1991 41 1 169 170 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-41-1-169 Zillig W. Holz I. Wunderl S. Hyperthermus butylicus gen. nov., sp. nov., a hyperthermophilic, anaerobic, peptide-fermenting, facultatively H2S-generating archaeobacterium. 1991 41 1 169 170 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-41-1-169