Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 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) Propionibacteriales (Rainey et al. 1997) Patrick and McDowell 2015 emend. Nouioui et al. 2018 Propionibacteriaceae Delwiche 1957 (Approved Lists 1980) emend. Zhi et al. 2009 Arachnia Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Arachnia Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Arachnia rubra (Saito et al. 2018) Tindall 2019 Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 pro synon. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 Propionibacterium propionicus (sic) (Buchanan and Pine 1962) Charfreitag et al. 1988 Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Scholz C.F.P. Kilian M. The natural history of cutaneous propionibacteria and reclassification of selected species within the genus Propionibacterium to the proposed novel genera Acidipropionibacterium gen. nov., Cutibacterium gen. nov. and Pseudopropionibacterium gen. nov. 2016 66 11 4422 4432 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001367 27488827 Charfreitag O. Collins M.D. Stackebrandt E. Reclassification of Arachnia propionica as Propionibacterium propionicus comb. nov. 1988 38 4 354 357 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-38-4-354 Tindall B.J. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980), Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 and Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 and the nomenclatural consequences of changes in the taxonomy of the genus Propionibacterium. 2019 69 8 2612 2615 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003442 31120826 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 Tindall 2019 states that 16S rRNA sequence AJ003058 cited by Dasen et al. 1998 comes from non-type material, and may be a different organism. Pine L. Georg L.K. Reclassification of Actinomyces propionicus 1969 19 3 267 272 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-19-3-267 Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 pro synon. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 pro synon. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980) emend. Tindall 2019 Pine L. Georg L.K. Reclassification of Actinomyces propionicus 1969 19 3 267 272 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-19-3-267 Charfreitag O. Collins M.D. Stackebrandt E. Reclassification of Arachnia propionica as Propionibacterium propionicus comb. nov. 1988 38 4 354 357 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-38-4-354 Tindall B.J. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980), Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 and Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 and the nomenclatural consequences of changes in the taxonomy of the genus Propionibacterium. 2019 69 8 2612 2615 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003442 31120826 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 Buchanan B.B. Pine L. Characterization of a propionic acid-producing actinomycete, Actinomyces propionicus. 1962 28 305 323 Journal of General Microbiology J Gen Microbiol 0022-1287