Beijerinckia derxia venezuelae (sic) Thompson and Skerman 1981 Beijerinckia derxia venezuelae (sic) Thompson and Skerman 1981 Beijerinckia derxii venezuelae corrig. Thompson and Skerman 1981 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Alphaproteobacteria Garrity et al. 2006 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Beijerinckiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Beijerinckia Derx 1950 emend. Becking 1974 (Approved Lists 1980) Beijerinckia derxii Tchan 1957 (Approved Lists 1980) Beijerinckia derxia venezuelae (sic) Thompson and Skerman 1981 Beijerinckia derxii venezuelae corrig. Thompson and Skerman 1981 Beijerinckia derxii Tchan 1957 (Approved Lists 1980) Beijerinckia derxii derxii Tchan 1990 Beijerinckia derxia venezuelae (sic) Thompson and Skerman 1981 Beijerinckia derxii venezuelae corrig. Thompson and Skerman 1981 List Editor Validation List no. 6. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1981 31 2 215 218 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-31-2-215 Dedysh S.N. Ricke P. Liesack W. NifH and NifD phylogenies: an evolutionary basis for understanding nitrogen fixation capabilities of methanotrophic bacteria 2004 150 1301 1313 Microbiology (English translation of Mikrobiologiya) 0026-2617 1608-3237 10.1099/mic.0.26585-0 15133093 Thompson J.P. Skerman V.B.D. Thompson J.P. Skerman V.B.D. 1979 1 405 Azotobacteraceae: The Taxonomy and Ecology of the Aerobic Nitrogen-Fixing Bacteria Academic Press London 0126890501 List Editor Validation List no. 6. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1981 31 2 215 218 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-31-2-215 Euzéby J.P. Kudo T. Corrigenda to the validation lists 2001 51 5 1933 1938 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-5-1933 11594628 Thompson J.P. Skerman V.B.D. Thompson J.P. Skerman V.B.D. 1979 1 405 Azotobacteraceae: The Taxonomy and Ecology of the Aerobic Nitrogen-Fixing Bacteria Academic Press London 0126890501