Heliomicrobium Kyndt et al. 2021 Heliomicrobium Kyndt et al. 2021 Heliomicrobium gestii (Ormerod et al. 1996) Kyndt et al. 2021 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Firmicutes (sic) Gibbons and Murray 2021 Bacillota corrig. Gibbons and Murray 2021 Firmacutes (sic) Gibbons and Murray 2021 Clostridia Rainey 2010 Eubacteriales Buchanan 1917 (Approved Lists 1980) emend. Tindall 2019 Heliobacteriaceae Asao and Madigan 2010 Heliomicrobium Kyndt et al. 2021 Heliobacteriaceae Asao and Madigan 2010 Heliobacillus Beer-Romero and Gest 1998 Heliobacterium Gest and Favinger 1985 emend. Kyndt et al. 2021 Heliomonas Asao et al. 2012 Heliophilum Ormerod et al. 1996 Heliorestis Bryantseva et al. 2000 emend. Bryantseva et al. 2000 Heliomicrobium gestii (Ormerod et al. 1996) Kyndt et al. 2021 Heliomicrobium modesticaldum (Kimble et al. 1996) Kyndt et al. 2021 Heliomicrobium undosum (Bryantseva et al. 2001) Kyndt et al. 2021 Heliomicrobium sulfidophilum (Bryantseva et al. 2000) Kyndt et al. 2021 Kyndt J.A. Montano Salama D. Meyer T.E. Imhoff J.F. Phylogenetic relationship of phototrophic heliobacteria and systematic reconsideration of species and genus assignments based on genome sequences of eight species. 2021 71 4 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.004729 33881982 Kyndt J.A. Montano Salama D. Meyer T.E. Imhoff J.F. Phylogenetic relationship of phototrophic heliobacteria and systematic reconsideration of species and genus assignments based on genome sequences of eight species. 2021 71 4 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.004729 33881982