Sphingopyxis terrae (Takeuchi et al. 1993) Takeuchi et al. 2001 emend. Hördt et al. 2020 TODO (parker): This opinion made names that do not have 2 deposits NVP - this should be interpreted as VP but illegitimate. Sphingopyxis terrae (Takeuchi et al. 1993) Takeuchi et al. 2001 emend. Hördt et al. 2020 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 Sphingopyxis Takeuchi et al. 2001 emend. Hördt et al. 2020 Sphingopyxis terrae (Takeuchi et al. 1993) Takeuchi et al. 2001 emend. Hördt et al. 2020 Sphingopyxis Takeuchi et al. 2001 emend. Hördt et al. 2020 Sphingopyxis taejonensis (Lee et al. 2001) Pal et al. 2006 Sphingopyxis ginsengisoli Lee et al. 2008 Sphingopyxis ummariensis Sharma et al. 2010 emend. Hördt et al. 2020 Sphingopyxis panaciterrulae Srinivasan et al. 2010 Sphingopyxis granuli Kim et al. 2011 emend. Hördt et al. 2020 Sphingopyxis flava Verma et al. 2015 Sphingopyxis chilensis Godoy et al. 2003 Sphingopyxis baekryungensis Yoon et al. 2005 Sphingopyxis flavimaris Yoon and Oh 2005 Sphingopyxis macrogoltabida (Takeuchi et al. 1993) Takeuchi et al. 2001 emend. Hördt et al. 2020 Sphingopyxis litoris Kim et al. 2008 Sphingopyxis marina Kim et al. 2008 Sphingopyxis soli Choi et al. 2010 Sphingopyxis rigui Baik et al. 2013 Sphingopyxis bauzanensis Zhang et al. 2010 emend. Hördt et al. 2020 Sphingopyxis wooponensis Baik et al. 2013 Sphingopyxis italica Alias-Villegas et al. 2013 Sphingopyxis contaminans Subhash et al. 2014 Sphingopyxis fribergensis Oelschlägel et al. 2015 Sphingopyxis alaskensis (Vancanneyt et al. 2001) Godoy et al. 2003 Sphingopyxis witflariensis Kämpfer et al. 2002 emend. Hördt et al. 2020 Sphingopyxis panaciterrae Lee et al. 2011 Sphingopyxis indica Jindal et al. 2013 emend. Hördt et al. 2020 Sphingopyxis solisilvae Chaudhary et al. 2017 Sphingopyxis nepalensis Chaudhary and Kim 2018 Sphingopyxis lindanitolerans Kaminski et al. 2018 Sphingopyxis terrae terrae (Takeuchi et al. 1993) Feng et al. 2017 Sphingopyxis terrae ummariensis (Sharma et al. 2010) Feng et al. 2017 Sphingopyxis terrae terrae (Takeuchi et al. 1993) Feng et al. 2017 Sphingomonas terrae Takeuchi et al. 1993 Sphingopyxis terrae (Takeuchi et al. 1993) Takeuchi et al. 2001 emend. Hördt et al. 2020 Judicial Commission of the International Committee on Systematics of Prokaryotes Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. 2008 58 7 1755 1763 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.2008/005264-0 18599730 Takeuchi M. Kawai F. Shimada Y. Yokota A. Taxonomic study of polyethylene glycol-utilizing bacteria: emended description of the genus Sphingomonas and new descriptions of Sphingomonas macrogoltabidus sp. nov., Sphingomonas sanguis sp. nov., and Sphingomonas terrae sp. nov. 1993 16 227 238 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 Takeuchi M. Hamana K. Hiraishi A. Proposal of the genus Sphingomonas sensu stricto and three new genera, Sphingobium, Novosphingobium and Sphingopyxis, on the basis of phylogenetic and chemotaxonomic analyses. 2001 51 4 1405 1417 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-4-1405 11491340 Feng G.-D. Wang D.-D. Yang S.-Z. Li H.-P. Zhu H.-H. Genome-based reclassification of Sphingopyxis ummariensis as a later heterotypic synonym of Sphingopyxis terrae, with the descriptions of Sphingopyxis terrae subsp. terrae subsp. nov. and Sphingopyxis terrae subsp. ummariensis subsp. nov. 2017 67 12 5279 5283 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.002465 29087277 Takeuchi M. Hamana K. Hiraishi A. Proposal of the genus Sphingomonas sensu stricto and three new genera, Sphingobium, Novosphingobium and Sphingopyxis, on the basis of phylogenetic and chemotaxonomic analyses. 2001 51 4 1405 1417 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-4-1405 11491340 Sphingopyxis terrae terrae (Takeuchi et al. 1993) Feng et al. 2017 Sphingopyxis ummariensis Sharma et al. 2010 emend. Hördt et al. 2020 Sphingomonas terrae Takeuchi et al. 1993 Euzéby J.P. Tindall B.J. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. 2004 54 1 293 301 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.03022-0 14742499 Judicial Commission of the International Committee on Systematics of Prokaryotes Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. 2008 58 7 1755 1763 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.2008/005264-0 18599730 Feng G.-D. Wang D.-D. Yang S.-Z. Li H.-P. Zhu H.-H. Genome-based reclassification of Sphingopyxis ummariensis as a later heterotypic synonym of Sphingopyxis terrae, with the descriptions of Sphingopyxis terrae subsp. terrae subsp. nov. and Sphingopyxis terrae subsp. ummariensis subsp. nov. 2017 67 12 5279 5283 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.002465 29087277 Hördt A. García-López M. Meier-Kolthoff J.P. Tindall B.J. Weinhold L.-M. Gronow S. Kyrpides N. Woyke T. Schleuning M. Göker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria 2020 11 468 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2020.00468 32373076 Takeuchi M. Hamana K. Hiraishi A. Proposal of the genus Sphingomonas sensu stricto and three new genera, Sphingobium, Novosphingobium and Sphingopyxis, on the basis of phylogenetic and chemotaxonomic analyses. 2001 51 4 1405 1417 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-51-4-1405 11491340 Readers are advised that there have been differing views about the taxonomy of Sphingomonas, Sphingobium, Novosphingobium and Sphingopyxis in the past. We choose to disregard the assertions of Yabuuchi et al. 2002 that species of the latter three genera are homotypic synonyms of Sphingomonas. That is a given since those genera were formed on new combinations in which species of Sphingomonas are the basonyms. Readers should use the names based on the taxonomy they chose to follow.