Desulfurolobus Zillig et al. 1987 Desulfurolobus Zillig et al. 1987 Desulfurolobus ambivalens Zillig et al. 1987 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 Sulfolobales Stetter 1989 Sulfolobaceae Stetter 1989 Desulfurolobus Zillig et al. 1987 Sulfolobaceae Stetter 1989 Sulfurisphaera Kurosawa et al. 1998 emend. Tsuboi et al. 2018 Acidianus (sic) Segerer et al. 1986 emend. Plumb et al. 2007 Acidijanus corrig. Segerer et al. 1986 emend. Plumb et al. 2007 Metallosphaera Huber et al. 1989 Stygiolobus Segerer et al. 1991 Sulfurococcus Golovacheva et al. 1995 Sulfolobus Brock et al. 1972 (Approved Lists 1980) Sulfodiicoccus Sakai and Kurosawa 2017 Saccharolobus Sakai and Kurosawa 2018 Sulfuracidifex Itoh et al. 2020 Desulfurolobus ambivalens Zillig et al. 1987 Zillig W. Yeats S. Holz J. Böck A. Rettenberger M. Gopp F. Simon G. Desulfolobus ambivalens, gen. nov., sp. nov., an autotrophic archaebacterium facultatively oxidizing or reducing sulfur 1986 8 197 203 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 Acidianus (sic) Segerer et al. 1986 emend. Plumb et al. 2007 Fuchs T. Huber H. Burggraf S. Stetter K.O. 16S rDNA-based phylogeny of the archeal order Sulfolobus and reclassification of Desulfurolobus ambivalens as Acidianus ambivalens comb. nov. 1996 19 1 56 60 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 10.1016/S0723-2020(96)80009-9 Zillig W. Yeats S. Holz J. Böck A. Rettenberger M. Gopp F. Simon G. Desulfolobus ambivalens, gen. nov., sp. nov., an autotrophic archaebacterium facultatively oxidizing or reducing sulfur 1986 8 197 203 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 List Editor Validation List no. 23. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1987 37 2 179 180 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-37-2-179