● Everett KDE,Bush RM,Andersen AA (1999). Emended description of the order Chlamydiales, proposal of Parachlamydiaceae fam. nov. and Simkaniaceae fam. nov., each containing one monotypic genus, revised taxonomy of the family Chlamydiaceae, including a new genus and five new species, and standards for the identification of organisms.
Int. J. Syst. Bacteriol. 49, 415-40.
● Sachse K,Bavoil PM,Kaltenboeck B,Stephens RS,Kuo CC,Rosselló-Móra R,Horn M (2015). Emendation of the family Chlamydiaceae: proposal of a single genus, Chlamydia, to include all currently recognized species.
Syst. Appl. Microbiol. 38, 99-103.