Blastomonas ursincola (Yurkov et al. 1997) Hiraishi et al. 2000 Blastomonas ursincola (Yurkov et al. 1997) Hiraishi et al. 2000 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 Sphingomonadales Yabuuchi and Kosako 2006 emend. Hördt et al. 2020 Sphingomonadaceae Kosako et al. 2000 emend. Hördt et al. 2020 Blastomonas Sly and Cahill 1997 emend. Hiraishi et al. 2000 Blastomonas ursincola (Yurkov et al. 1997) Hiraishi et al. 2000 Blastomonas Sly and Cahill 1997 emend. Hiraishi et al. 2000 Blastomonas aquatica Xiao et al. 2015 Blastomonas natatoria (Sly 1985) Sly and Cahill 1997 emend. Hördt et al. 2020 Blastomonas quesadae Castro et al. 2017 Blastomonas marina Meng et al. 2017 Blastomonas fulva Lee et al. 2017 Sphingomonas ursincola (Yurkov et al. 1997) Yabuuchi et al. 1999 Blastomonas ursincola (Yurkov et al. 1997) Hiraishi et al. 2000 Erythromicrobium ursincola Yurkov et al. 1992 Erythromonas ursincola (Yurkov et al. 1992) Yurkov et al. 1997 Yurkov V. Stackebrandt E. Buss O. Vermeglio A. Gorlenko V. Beatty J.T. Reorganization of the genus Erythromicrobium: description of Erythromicrobium sibiricum as Sandaracinobacter sibiricus gen. nov., sp. nov., and of Erythromicrobium ursincola as Erythromonas ursincola gen. nov., sp. nov. 1997 47 4 1172 1178 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-47-4-1172 9336925 Hiraishi A. Kuraishi H. Kawahara K. Emendation of the description of Blastomonas natatoria (Sly 1985) Sly and Cahill 1997 as an aerobic photosynthetic bacterium and reclassification of Erythromonas ursincola Yurkov et al. 1997 as Blastomonas ursincola comb. nov. 2000 50 3 1113 1118 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-50-3-1113 10843052 Hiraishi A. Kuraishi H. Kawahara K. Emendation of the description of Blastomonas natatoria (Sly 1985) Sly and Cahill 1997 as an aerobic photosynthetic bacterium and reclassification of Erythromonas ursincola Yurkov et al. 1997 as Blastomonas ursincola comb. nov. 2000 50 3 1113 1118 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-50-3-1113 10843052 Sphingomonas ursincola (Yurkov et al. 1997) Yabuuchi et al. 1999 Erythromonas ursincola (Yurkov et al. 1992) Yurkov et al. 1997 Hiraishi A. Kuraishi H. Kawahara K. Emendation of the description of Blastomonas natatoria (Sly 1985) Sly and Cahill 1997 as an aerobic photosynthetic bacterium and reclassification of Erythromonas ursincola Yurkov et al. 1997 as Blastomonas ursincola comb. nov. 2000 50 3 1113 1118 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-50-3-1113 10843052 TODO (garrity): RFO This may require a Judicial Opinion. Takeuchi et al. 2001 proposed the division of the genus Sphingomonas. According to them, Blastomonas ursincola is a new combination with the basonym of Sphingomonas ursincola. Yabuuchi et al. 2002 (rid.6746) are of the opinion that the genus Sphingomonas should not be divided into different genera as proposed by Takeuchi et al. 2001. Since the the new genus names and new combinations resulting from the division of Sphingomonas have been validly published, they have standing in nomenclature. The difference in taxonomic opinion, leads to a homotypic synonymy between Blastomonas ursincola and Sphingomonas ursincola. Takeuchi, M., Hamana, K. and Hiraishi, A. (2001)Proposal of the genus Sphingomonas sensu stricto and three new genera, Sphingobium, Novosphingobium and Sphingopyxis, on the basis of phylogenetic and chemotaxonomic analyses. IJSEM (51) 1405-1417 Yabuuchi, E., Kosako, Y., Fujiwara, N., Naka, T., Matsunaga, I., Ogura, H. and Kobayashi, K. (2002) Emendation of the genus Sphingomonas Yabuuchi et al. 1990 and junior objective synonymy of the species of three genera, Sphingobium, Novosphingobium and Sphingopyxis, in conjunction with Blastomonas ursincola. IJSEM (52)1485-1496 Yabuuchi et al. 1999 (rid.4631) proposed to transfer the species Blastomonas natatoria and Erythromonas ursincola to the genus Sphingomonas. This effectively deletes the genera Blastomonas and Erythromonas since B. natatoria and E. ursincola were the only species in the respective genera (and the type species). The new combinations were published in Microbiology and Immunology and on Validation List no. 70. Hiraishi et al. 2000 (rid.4321) essentially reverse the taxonomic changes made by Yabuuchi et al. 1999. They retain the genus Blastomonas, transfer E. ursincola to Blastomoas as B. ursincola and give an emended description of B. natatoria. This species is subject to multiple taxonomic opinions. Please refer to the primary literature.