Family Parachlamydiaceae

Name: Parachlamydiaceae Everett et al. 1999

Category, proposed as: family, fam. nov.

Etymology: Pa.ra.chla.my.di.a’ce.ae. N.L. fem. n. Parachlamydia, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Parachlamydiaceae, the Parachlamydia family

Pronunciation (Latin), gender: pa-ra-k^hla-my-di-A-ke-a͡e, feminine

Type genus: Parachlamydia Everett et al. 1999

Valid publication: Everett KD, Bush RM, Andersen AA. 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 1999; 49:415-440. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 2 of the IJSB. Int J Syst Bacteriol 1999; 49:937-939.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • 🧕 Gupta et al. (2015) assigned this family to the order Parachlamydiales Gupta et al. 2016. Publication: Gupta RS, 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. Antonie Van Leeuwenhoek 2015; 108:765-781. 🇨🇦
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Parachlamydiceae".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Borel N, Greub G. International Committee on Systematics of Prokaryotes (ICSP) Subcommittee on the taxonomy of Chlamydiae, minutes of the closed meeting, 10 September 2020, via Zoom. Int J Syst Evol Microbiol 2021; 71:4620. 🇨🇭
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Borel N, Greub G, For The Icsp Subcommittee On The Taxonomy Of Chlamydiae. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Chlamydiae: March 25, meeting of the Chlamydia Basic Research Society, Berlin, Germany. Int J Syst Evol Microbiol 2026; 76:7044. 🇨🇭
  • 🎰 The BRCs most frequently used for deposits in this group are: ATCC: 5; CSUR: 2.

Subdivision:

Number of child taxa with a validly published and correct name: 1
Number of child taxa with a validly published name, including synonyms: 1
Total number of child taxa: 6

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Mesochlamydia" Corsaro et al. 2013	not validly published	pro-correct name
    "Candidatus Metachlamydia" Corsaro et al. 2010	not validly published	preferred name
    "Neochlamydia" Horn et al. 2000	not validly published	preferred name
    Parachlamydia Everett et al. 1999	validly published under the ICNP	correct name
    "Candidatus Protochlamydia" Horn 2010	not validly published	synonym
    "Candidatus Protochlamydia" Collingro et al. 2005	not validly published	pro-correct name

Parent taxon: Chlamydiales Storz and Page 1971 (Approved Lists 1980)

Assigned by: Everett KD, Bush RM, Andersen AA. 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 1999; 49:415-440. 🇺🇸

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Record number: 1022