Name: Sphaerochaetaceae Hördt et al. 2020

Category: Family

Proposed as: fam. nov.

Etymology: Sphae.ro.chae.ta’ce.ae. N.L. fem. n. Sphaerochaeta, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Sphaerochaetaceae, the Sphaerochaeta family

Pronunciation (Latin), gender: sp^ha͡e-ro-k^ha͡e-TA-ke-a͡e, feminine

Type genus: Sphaerochaeta Ritalahti et al. 2012

Effective publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

IJSEM list: Oren A, Garrity GM. Validation list no. 194. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:4043-4049.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Sphaerochaetaceae Bidzhieva et al. 2020	homotypic synonym, validly published under the ICNP, illegitimate name

• Notes:
  • 🧕 Chuvochina et al. (2023) assigned this family to the order Sphaerochaetales Chuvochina et al. 2024. Publication: Chuvochina M, Mussig AJ, Chaumeil PA, Skarshewski A, Rinke C, Parks DH, Hugenholtz P. Proposal of names for 329 higher rank taxa defined in the Genome Taxonomy Database under two prokaryotic codes. FEMS Microbiol Lett 2023; 0:0. 🇦🇺
  • 🚃 The type genus of this family has alternatively been placed in the family Spirochaetaceae Swellengrebel 1907 (Approved Lists 1980). Publication: Ritalahti KM, Justicia-Leon SD, Cusick KD, Ramos-Hernandez N, Rubin M, Dornbush J, Loffler FE. Sphaerochaeta globosa gen. nov., sp. nov. and Sphaerochaeta pleomorpha sp. nov., free-living, spherical spirochaetes. Int J Syst Evol Microbiol 2012; 62:210-216. 🇺🇸
  • 🚃 The type genus of this family has alternatively been placed in the family Spirochaetaceae Swellengrebel 1907 (Approved Lists 1980). Publication: Gupta RS, Mahmood S, Adeolu M. A phylogenomic and molecular signature based approach for characterization of the phylum Spirochaetes and its major clades: proposal for a taxonomic revision of the phylum. Front Microbiol 2013; 4:217. 🇨🇦
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Sphaerocoecaceae".
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 9; JCM: 4; ATCC: 4; VKM: 3; KCTC: 2.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 3
Total number of child taxa: 6

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Aphodenecus" Gilroy et al. 2021	not validly published	pro-correct name
    "Candidatus Ornithospirochaeta" Gilroy et al. 2021	not validly published	pro-correct name
    Parasphaerochaeta Bidzhieva et al. 2020	validly published under the ICNP	synonym
    "Candidatus Physcosoma" Gilroy et al. 2022	not validly published	preferred name
    Pleomorphochaeta Arroua et al. 2017	validly published under the ICNP	correct name
    Sphaerochaeta Ritalahti et al. 2012	validly published under the ICNP	correct name

Parent taxon: Spirochaetales Buchanan 1917 (Approved Lists 1980)

Assigned by: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

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Record number: 11167