Chlamydiales Storz and Page 1971 (Approved Lists 1980) emend. Gupta et al. 2015 Chlamydia Jones et al. 1945 (Approved Lists 1980) emend. Sachse et al. 2015 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 Chlamydiales Storz and Page 1971 (Approved Lists 1980) emend. Gupta et al. 2015 Chlamydiia (Cavalier-Smith 2002) Horn 2016 emend. Gupta et al. 2015 Parachlamydiales Gupta et al. 2016 Chlamydiaceae Rake 1957 (Approved Lists 1980) emend. Sachse et al. 2015 Parachlamydiaceae Everett et al. 1999 Simkaniaceae Everett et al. 1999 Waddliaceae Rurangirwa et al. 1999 Clavichlamydiaceae Horn 2010 Criblamydiaceae Thomas et al. 2006 Piscichlamydiaceae Horn 2010 Rhabdochlamydiaceae Horn 2015 Actinochlamydiaceae Steigen et al. 2013 Incertae sedis 692 Pagnier et al. 2015 Storz J. Page L.A. Taxonomy of the Chlamydiae: Reasons for Classifying Organisms of the Genus Chlamydia, Family Chlamydiaceae, in a Separate Order, Chlamydiales ord. nov. 1971 21 4 332 334 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-21-4-332 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 Pagnier I. Valles C. Raoult D. La Scola B. Isolation of Vermamoeba vermiformis and associated bacteria in hospital water. 2015 80 14 20 Microbial Pathogenesis Microb Path 0882-4010 10.1016/j.micpath.2015.02.006 25697664 Ludwig W. Euzeby J. Whitman W.B. Krieg N.R. Staley J.T. Brown D.R. Hedlund B.P. Paster B.J. Ward N.L. Ludwig W. Whitman W.B. Taxonomic outlines of the phyla Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), ­Acidobacteria, Fibrobacteres, Fusobacteria, ­Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes 2010 4 2 21 24 Bergey's Manual of Systematic Bacteriology Springer New York 0387950427 10.1007/978-0-387-68572-4_2 Steigen A. Nylund A. Karlsbakk E. Akoll P. Fiksdal I.U. Nylund S. Odong R. Plarre H. Semyalo R. Skår C. Watanabe K. 'Cand. Actinochlamydia clariae' gen. nov., sp. nov., a unique intracellular bacterium causing epitheliocystis in catfish (Clarias gariepinus) in Uganda. 2013 8 6 e66840 e66840 PLoS One 1932-6203 10.1371/journal.pone.0066840 23826156 Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. 2002 52 1 7 76 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/00207713-52-1-7 11837318