Parachlamydiales Gupta et al. 2016 Parachlamydiales Gupta et al. 2016 Parachlamydia Everett et al. 1999 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Chlamydiota corrig. Garrity and Holt 2021 Chlamydiae (sic) Garrity and Holt 2021 non Chlamydiae Cavalier-Smith 2002 Chlamydiia (Cavalier-Smith 2002) Horn 2016 emend. Gupta et al. 2015 Parachlamydiales Gupta et al. 2016 Chlamydiia (Cavalier-Smith 2002) Horn 2016 emend. Gupta et al. 2015 Chlamydiales Storz and Page 1971 (Approved Lists 1980) emend. Gupta et al. 2015 Parachlamydiaceae Everett et al. 1999 Simkaniaceae Everett et al. 1999 Waddliaceae Rurangirwa et al. 1999 Parilichlamydiaceae Stride et al. 2013 Gupta R.S. Naushad S. Chokshi C. Griffiths E. Adeolu M. A phylogenomic and molecular markers based analysis of the phylum Chlamydiae: proposal to divide the class Chlamydiia into two orders, Chlamydiales and Parachlamydiales ord. nov., and emended description of the class Chlamydiia 2015 108 3 765 781 Antonie van Leeuwenhoek 0003-6072 1572-9699 10.1007/s10482-015-0532-1 26179278 Oren A. Garrity G. Validation List No. 170. List of new names and new combinations previously effectively, but not validly, published 2016 66 7 2463 2466 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.001149 27530111 Gupta R.S. Naushad S. Chokshi C. Griffiths E. Adeolu M. A phylogenomic and molecular markers based analysis of the phylum Chlamydiae: proposal to divide the class Chlamydiia into two orders, Chlamydiales and Parachlamydiales ord. nov., and emended description of the class Chlamydiia 2015 108 3 765 781 Antonie van Leeuwenhoek 0003-6072 1572-9699 10.1007/s10482-015-0532-1 26179278 Tindall B.J. Comments on minutes of the Subcommittee on the Taxonomy of Chlamydiae and the Subcommittee on the Taxonomy of Rhizobia and Agrobacteria. 2019 69 8 2599 2601 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003223 30676314 Borel N. Bavoil P. Greub G. Horn M. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Chlamydiae. Minutes of the closed meeting, 9 April 2017, Charlotte, USA. 2018 68 1 3369 3370 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.003010 30192223 The Subcommittee on the Taxonomy of Chlamydiae (Boren et al. 2018) recommends "to reject the proposal of Parachlamydiales ord. nov." Tindall 2019 disputes that recommendation.