Spongiibacter tropicus Hwang and Cho 2009 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 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Cellvibrionales Spring et al. 2015 Spongiibacteraceae Spring et al. 2015 Spongiibacter Graeber et al. 2008 emend. Jang et al. 2011 Spongiibacter tropicus Hwang and Cho 2009 Spongiibacter Graeber et al. 2008 emend. Jang et al. 2011 Spongiibacter marinus Graeber et al. 2008 emend. Jang et al. 2011 Spongiibacter borealis Jang et al. 2011 Spongiibacter taiwanensis Jean et al. 2016 Spongiibacter pelagi Yoon 2022 Spongiibacter thalassae Yoon 2022 Spongiibacter tropicus Hwang and Cho 2009 Hwang C.Y. Cho B.C. Spongiibacter tropicus sp. nov., isolated from a Synechococcus culture 2009 59 9 2176 2179 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.005819-0 19605732 Hwang C.Y. Cho B.C. Spongiibacter tropicus sp. nov., isolated from a Synechococcus culture 2009 59 9 2176 2179 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.005819-0 19605732