Quatrionicoccus (Maszenan et al. 2002) Tindall and Euzéby 2006 Quatrionicoccus australiensis Tindall and Euzéby 2006 pro synon. Quadricoccus australiensis Maszenan et al. 2002 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 Betaproteobacteria Garrity et al. 2006 emend. Boden et al. 2017 Rhodocyclales Garrity et al. 2006 Azonexaceae Boden et al. 2017 Quatrionicoccus (Maszenan et al. 2002) Tindall and Euzéby 2006 Azonexaceae Boden et al. 2017 Dechloromonas Achenbach et al. 2001 Ferribacterium Cummings et al. 2000 Azonexus Reinhold-Hurek and Hurek 2000 Quatrionicoccus australiensis Tindall and Euzéby 2006 pro synon. Quadricoccus australiensis Maszenan et al. 2002 Chun J. Kang J.Y. Jung Y.C. Jahng K.Y. Niveibacterium umoris gen. nov., sp. nov., isolated from wetland freshwater 2016 66 2 997 1002 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.000826 26643899 Boden R. Hutt L.P. Rae A.W. Reclassification of Thiobacillus aquaesulis (Wood & Kelly, 1995) as Annwoodia aquaesulis gen. nov., comb. nov., transfer of Thiobacillus (Beijerinck, 1904) from the Hydrogenophilales to the Nitrosomonadales, proposal of Hydrogenophilalia class. nov. within the ‘Proteobacteria’, and four new families within the orders Nitrosomonadales and Rhodocyclales 2017 67 5 1191 1205 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001927 28581923 Tindall B.J. Euzéby J.P. Proposal of Parvimonas gen. nov. and Quatrionicoccus gen. nov. as replacements for the illegitimate, prokaryotic, generic names Micromonas Murdoch and Shah 2000 and Quadricoccus Maszenan et al. 2002, respectively. 2006 56 11 2711 2713 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64338-0 17082417