Providencia Ewing 1962 (Approved Lists 1980) Providencia alcalifaciens (de Salles Gomes 1944) Ewing 1962 (Approved Lists 1980) pro synon. Proteus inconstans (Ornstein 1920) Shaw and Clarke 1955 (Approved Lists 1980) 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 Enterobacterales (Garrity and Holt 2001) Adeolu et al. 2016 Morganellaceae Adeolu et al. 2016 Providencia Ewing 1962 (Approved Lists 1980) Morganellaceae Adeolu et al. 2016 Morganella Fulton 1943 (Approved Lists 1980) Arsenophonus Gherna et al. 1991 Cosenzaea Giammanco et al. 2011 Moellerella Hickman-Brenner et al. 1984 Photorhabdus Boemare et al. 1993 Proteus Hauser 1885 (Approved Lists 1980) emend. Hyun et al. 2016 Xenorhabdus Thomas and Poinar 1979 (Approved Lists 1980) emend. Akhurst 1983 Kotejella Michalik et al. 2018 Hartigia (sic) Toenshoff et al. 2014 Theodorhartigia corrig. Toenshoff et al. 2014 Providencia rettgeri (Hadley et al. 1918) Brenner et al. 1978 (Approved Lists 1980) pro synon. Proteus rettgeri (Hadley et al. 1918) Rustigian and Stuart 1943 (Approved Lists 1980) Providencia heimbachae Müller et al. 1986 Providencia vermicola Somvanshi et al. 2006 Providencia alcalifaciens (de Salles Gomes 1944) Ewing 1962 (Approved Lists 1980) pro synon. Proteus inconstans (Ornstein 1920) Shaw and Clarke 1955 (Approved Lists 1980) Providencia thailandensis Khunthongpan et al. 2014 Providencia stuartii (Buttiaux et al. 1954) Ewing 1962 (Approved Lists 1980) Providencia rustigianii Hickman-Brenner et al. 1983 Providencia sneebia Juneja and Lazzaro 2009 Providencia burhodogranariea Juneja and Lazzaro 2009 Providencia friedericiana Müller 1983 Providencia huaxiensis Hu et al. 2019 Adeolu M. Alnajar S. Naushad S. Gupta R.S. Genome based phylogeny and taxonomy of the "Enterobacteriales": proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov., Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. 2016 66 12 5575 5599 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001485 27620848 Juneja P. Lazzaro B.P. Providencia sneebia sp. nov. and Providencia burhodogranariea sp. nov., isolated from wild Drosophila melanogaster. 2009 59 5 1108 1111 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.000117-0 19406801 Ewing W.H. The tribe Proteae: its nomenclature and taxonomy. 1962 12 93 102 International Bulletin of Bacteriological Nomenclature and Taxonomy Int Bull Bacteriol Nomencl Taxon 0096-266X 10.1099/0096266X-12-3-93 Somvanshi V.S. Lang E. Sträubler B. Spröer C. Schumann P. Ganguly S. Saxena A.K. Stackebrandt E. Providencia vermicola sp. nov., isolated from infective juveniles of the entomopathogenic nematode Steinernema thermophilum. 2006 56 3 629 633 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.63973-0 16514040 Müller A.E. O'Hara C.M. Fanning G.R. Hickman-Brenner F.W. Swenson J.M. Brenner D.J. Providencia heimbachae, a new species of Enterobacteriaceae isolated from animals. 1986 36 2 252 256 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-36-2-252 Brenner D.J. Farmer J.J. Fanning G.R. Steigerwalt A.G. Klykken P. Wathen H.G. Hickman F.W. Ewing W.H. Deoxyribonucleic acid relatedness of Proteus and Providencia species. 1978 28 2 269 282 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-28-2-269 Hickman-Brenner F.W. Farmer J.J. Steigerwalt A.G. Brenner D.J. Providencia rustigianii: a new species in the family Enterobacteriaceae formerly known as Providencia alcalifaciens biogroup 3. 1983 17 6 1057 1060 Journal of Clinical Microbiology J Clin Microbiol 0095-1137 1098-660X 6874899 Khunthongpan S. Sumpavapol P. Tanasupawat S. Benjakul S. H-Kittikun A. Providencia thailandensis sp. nov., isolated from seafood processing wastewater 2013 59 185 190 The Journal of General and Applied Microbiology J Gen Appl Microbiol 0022-1260 1349-8037 23863288 Hu Y. Feng Y. Zhang X. Zong Z. Providencia huaxiensis sp. nov., recovered from a human rectal swab. 2019 69 9 2638 2643 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003502 31162027 Lautrop H. Buchanan R.E. Gibbons N.E. Genus X. Proteus Mauser 1885, 12 1974 8 327 330 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore 0683011170 Müller H.E. Providencia friedericiana, a new species isolated from penguins 1983 33 4 709 715 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-33-4-709