Acidimicrobium Clark and Norris 1996 Acidimicrobium ferrooxidans Clark and Norris 1996 emend. Nouioui et al. 2018 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Actinobacteria (sic) Goodfellow 2021 non Actinobacteria Stackebrandt et al. 1997 Actinomycetota corrig. Goodfellow 2021 Actinobacteriota corrig. Goodfellow 2021 Acidimicrobiia Norris 2013 Acidimicrobidae Stackebrandt et al. 1997 emend. Zhi et al. 2009 Acidimicrobiales Stackebrandt et al. 1997 emend. Zhi et al. 2009 Acidimicrobiaceae Stackebrandt et al. 1997 emend. Zhi et al. 2009 Acidimicrobium Clark and Norris 1996 Acidimicrobiaceae Stackebrandt et al. 1997 emend. Zhi et al. 2009 Ferrimicrobium Johnson et al. 2009 Ferrithrix Johnson et al. 2009 Ilumatobacter Matsumoto et al. 2009 Aciditerrimonas Itoh et al. 2011 Acidiferrimicrobium González et al. 2020 Acidimicrobium ferrooxidans Clark and Norris 1996 emend. Nouioui et al. 2018 Clark D.A. Norris P.R. Acidimicrobium ferrooxidans gen. nov., sp. nov.: mixed-culture ferrous iron oxidation with Sulfobacillus species 1996 142 785 790 Microbiology (English translation of Mikrobiologiya) 0026-2617 1608-3237 Stackebrandt E. Rainey F.A. Ward-Rainey N.L. Proposal for a new hierarchic classification system, Actinobacteria classis nov. 1997 47 2 479 491 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-47-2-479