Actinomycetes Krasil'nikov 1949 (Approved Lists 1980) Actinomycetales Buchanan 1917 (Approved Lists 1980) emend. Salam et al. 2020 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 Actinomycetes Krasil'nikov 1949 (Approved Lists 1980) Actinobacteria (sic) Goodfellow 2021 non Actinobacteria Stackebrandt et al. 1997 Actinomycetota corrig. Goodfellow 2021 Actinobacteriota corrig. Goodfellow 2021 Actinobacteria Stackebrandt et al. 1997 emend. Nouioui et al. 2018 non Actinobacteria Goodfellow 2021 Rubrobacteria Suzuki 2013 emend. Foesel et al. 2016 Coriobacteriia König 2013 emend. Gupta et al. 2013 Acidimicrobiia Norris 2013 Thermoleophilia Suzuki and Whitman 2013 emend. Foesel et al. 2016 Nitriliruptoria Ludwig et al. 2013 Actinomycetia (Stackebrandt et al. 1997) Salam et al. 2020 pro synon. Actinomycetes Krasil'nikov 1949 (Approved Lists 1980) Syntrophaliphaticia corrig. Liu et al. 2020 Syntraliphaticia (sic) Liu et al. 2020 Incertae sedis 722 Merino et al. 2020 Actinomycetales Buchanan 1917 (Approved Lists 1980) emend. Salam et al. 2020 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225 Zhi X.Y. Li W.J. Stackebrandt E. An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria, with the proposal of two new suborders and four new families and emended descriptions of the existing higher taxa. 2009 59 3 589 608 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.65780-0 19244447