Name: Thermoanaerobacterales Wiegel 2010

Category: Order

Proposed as: ord. nov.

Etymology: N.L. masc. n. Thermoanaerobacter, type genus of the order; L. fem. pl. n. suff. -ales, ending to denote an order; N.L. fem. pl. n. Thermoanaerobacterales, order of the genus Thermoanaerobacter

Gender: feminine

Type genus: Thermoanaerobacter Wiegel and Ljungdahl 1982

Effective publication: Wiegel J. Order III. Thermoanaerobacterales ord. nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 1224.

IJSEM list: Euzeby JP. Validation list no. 132. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2010; 60:469-472.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Calderihabitantales Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Carboxydothermales Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    "Thermodesulfobiales" Cavalier-Smith and Chao 2020	heterotypic synonym, not validly published
    Thermacetogeniales Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Mahellales Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP
    Thermodesulfobiales Frolov et al. 2023	heterotypic synonym, validly published under the ICNP
    Ammonificales Chuvochina et al. 2024	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Zhang et al. 2019 Zhang X, Tu B, Lv XM, Lawson PA, Yang M, Dai LR, Zhang H, Tang YQ, Deng Y, Cheng L. Description of Biomaibacter acetigenes gen. nov., sp. nov., and proposal of Thermosediminibacterales ord. nov. containing two novel families of Tepidanaerobacteraceae fam. nov. and Thermosediminibacteraceae fam. nov. Int J Syst Evol Microbiol 2019; 69:3891-3902. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 69, part 12 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:1447-1449.
    Notes:
    • ⊖ Emendation accompanied by the removal of 4 genera from the order.
    • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details.
  • Lv et al. 2020 Lv XM, Yang M, Dai LR, Tu B, Chang C, Huang Y, Deng Y, Lawson PA, Zhang H, Cheng L, et al. Zhaonella formicivorans gen. nov., sp. nov., an anaerobic formate-utilizing bacterium isolated from Shengli oilfield, and proposal of four novel families and Moorellales ord. nov. in the phylum Firmicutes. Int J Syst Evol Microbiol 2020; 70:3361-3373. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 5 of the IJSEM. Int J Syst Evol Microbiol 2020; 70:4421-4424.
    Notes:
    • ⊖ Emendation accompanied by the removal of 1 family from the order.

• Notes:
  • 🧕 Cavalier-Smith and Chao (2020) assigned this order to the class "Clostridiia" Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • 🧒 De Vos et al. (2009) assigned the genus Thermoanaerobacter Wiegel and Ljungdahl 1982 to this order. Publication: Wiegel J. Order III. Thermoanaerobacterales ord. nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 1224.
  • 🧒 De Vos et al. (2009) assigned the genus Caldicellulosiruptor Rainey et al. 1995 to this order. Publication: Wiegel J. Order III. Thermoanaerobacterales ord. nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 1224.
  • 🧒 Pavan et al. (2018) assigned the genus Caldanaerovirga Wagner et al. 2009 to this order. Publication: Pavan ME, Pavan EE, Glaeser SP, Etchebehere C, Kampfer P, Pettinari MJ, Lopez NI. Proposal for a new classification of a deep branching bacterial phylogenetic lineage: transfer of Coprothermobacter proteolyticus and Coprothermobacter platensis to Coprothermobacteraceae fam. nov., within Coprothermobacterales ord. nov., Coprothermobacteria classis nov. and Coprothermobacterota phyl. nov. and emended description of the family Thermodesulfobiaceae. Int J Syst Evol Microbiol 2018; 68:1627-1632.
  • 🧒 Yilmaz et al. (2014) assigned the genus Syntrophaceticus Westerholm et al. 2011 to this order. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 🧒 Yilmaz et al. (2014) assigned the genus Thermovorax Mäkinen et al. 2012 to this order. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648.
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Lv et al. (2020). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 66; ATCC: 36; VKM: 15; JCM: 8; NBRC: 4; CIP: 2; KCTC: 2; NCTC: 1; NCIMB: 1; BCRC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 4
Number of child taxa with a validly published name, including synonyms: 10
Total number of child taxa: 12

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Ammonificaceae Chuvochina et al. 2024	validly published under the ICNP	synonym
    Caldanaerobiaceae Chuvochina et al. 2024	validly published under the ICNP	synonym
    Calderihabitantaceae Lv et al. 2020	validly published under the ICNP	synonym
    Carboxydothermaceae Chuvochina et al. 2024	validly published under the ICNP	synonym
    "Candidatus Desulforudaceae" Chuvochina et al. 2023	not validly published	preferred name (not pro-correct name)
    Desulfovirgulaceae Chuvochina et al. 2024	validly published under the ICNP	synonym
    Mahellaceae Chuvochina et al. 2024	validly published under the ICNP	correct name
    Thermacetogeniaceae Chuvochina et al. 2024	validly published under the ICNP	synonym
    Thermoanaerobacteraceae Wiegel 2010	validly published under the ICNP	correct name
    [Thermoanaerobacterales, not assigned to family]	artificial parent node of taxa incertae sedis
    Thermodesulfobiaceae Mori et al. 2004	validly published under the ICNP	correct name
    Zhaonellaceae Lv et al. 2020	validly published under the ICNP	correct name

Parent taxon: Clostridia Rainey 2010

Assigned by: Rainey FA. Class II. Clostridia class nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 736.

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Record number: 5124