Tropicibacter varians (Hahnke et al. 2013) Liang et al. 2021 Tropicibacter varians (Hahnke et al. 2013) Liang et al. 2021 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 Rhodobacterales Garrity et al. 2006 emend. Hördt et al. 2020 Roseobacteraceae Liang et al. 2021 Tropicibacter Harwati et al. 2009 emend. Liang et al. 2021 Tropicibacter varians (Hahnke et al. 2013) Liang et al. 2021 Tropicibacter Harwati et al. 2009 emend. Liang et al. 2021 Tropicibacter naphthalenivorans Harwati et al. 2009 emend. Hördt et al. 2020 Tropicibacter mediterraneus Lucena et al. 2014 Tropicibacter phthalicicus corrig. Iwaki et al. 2012 Tropicibacter phthalicus (sic) Iwaki et al. 2012 Tropicibacter multivorans Lucena et al. 2012 Tropicibacter litoreus Lucena et al. 2014 Tropicibacter varians (Hahnke et al. 2013) Liang et al. 2021 Pelagimonas varians Hahnke et al. 2013 Liang K.Y.H. Orata F.D. Boucher Y.F. Case R.J. Roseobacters in a Sea of Poly- and Paraphyly: Whole Genome-Based Taxonomy of the Family Rhodobacteraceae and the Proposal for the Split of the "Roseobacter Clade" Into a Novel Family, Roseobacteraceae fam. nov. 2021 12 683109 683109 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2021.683109 34248901 Hahnke S. Tindall B.J. Schumann P. Simon M. Brinkhoff T. Pelagimonas varians gen. nov., sp. nov., isolated from the southern North Sea 2013 63 3 835 843 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.040675-0 22611199 Liang K.Y.H. Orata F.D. Boucher Y.F. Case R.J. Roseobacters in a Sea of Poly- and Paraphyly: Whole Genome-Based Taxonomy of the Family Rhodobacteraceae and the Proposal for the Split of the "Roseobacter Clade" Into a Novel Family, Roseobacteraceae fam. nov. 2021 12 683109 683109 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2021.683109 34248901 Pelagimonas varians Hahnke et al. 2013 Liang K.Y.H. Orata F.D. Boucher Y.F. Case R.J. Roseobacters in a Sea of Poly- and Paraphyly: Whole Genome-Based Taxonomy of the Family Rhodobacteraceae and the Proposal for the Split of the "Roseobacter Clade" Into a Novel Family, Roseobacteraceae fam. nov. 2021 12 683109 683109 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2021.683109 34248901 This new combination by Liang et al. 2021 would remove the type species of Pelagimonas. Unless a unification were being done (accounting for all Validly Published species of Pelagimonas), this would result in an illegitimate later homotypic synonym at the species level.