Propionigenium modestum Schink and Pfennig 1983 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Fusobacteriota corrig. Garrity and Holt 2021 Fusobacteria (sic) Garrity and Holt 2021 non Fusobacteria Staley and Whitman 2012 Fusobacteria (sic) Staley and Whitman 2012 non Fusobacteria Garrity and Holt 2021 Fusobacteriia corrig. Staley and Whitman 2012 Fusobacteriales Staley and Whitman 2012 Fusobacteriaceae Staley and Whitman 2012 emend. Gupta and Sethi 2014 Propionigenium Schink and Pfennig 1983 Propionigenium modestum Schink and Pfennig 1983 Propionigenium Schink and Pfennig 1983 Propionigenium maris Janssen and Liesack 1996 emend. Watson et al. 2000 Propionigenium modestum Schink and Pfennig 1983 Both B. Kaim G. Wolters J. Schleifer K.H. Stackebrandt E. Ludwig W. Propionigenium modestum: a separate line of descent within the eubacteria 1991 62 1 53 58 FEMS Microbiology Letters FEMS Microbiol Lett 0378-1097 1574-6968 1709606 List Editor Validation List no. 12. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1983 33 4 896 897 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-33-4-896 Schink B. Pfennig N. Propionigenium modestum gen. nov. sp. nov., a new strictly anaerobic nonsporing bacterium growing on succinate 1982 133 209 216 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/BF00415003