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Genus Caldibacillus
Name: Caldibacillus Coorevits et al. 2012
Etymology: Cal.di.ba.cil’lus. L. masc. adj. caldus, warm, hot; L. masc. n. bacillus, a small staff or rod; N.L. masc. n. Caldibacillus, warm bacillus, referring to the organism’s thermophily
Gender, pronunciation (Latin): masculine (stem: Caldibacill-), kal-di-ba-KIL-lus
Type species: Caldibacillus debilis (Banat et al. 2004) Coorevits et al. 2012
Conduct genome-based taxonomy of genus at TYGS
Valid publication:
Coorevits A, Dinsdale AE, Halket G, Lebbe L, De Vos P, Van Landschoot A, Logan NA. Taxonomic revision of the genus Geobacillus: emendation of Geobacillus, G. stearothermophilus, G. jurassicus, G. toebii, G. thermodenitrificans and G. thermoglucosidans (nom. corrig., formerly 'thermoglucosidasius'); transfer of Bacillus thermantarcticus to the genus as G. thermantarcticus comb. nov.; proposal of Caldibacillus debilis gen. nov., comb. nov.; transfer of G. tepidamans to Anoxybacillus as A. tepidamans comb. nov.; and proposal of Anoxybacillus caldiproteolyticus sp. nov. Int J Syst Evol Microbiol 2012; 62:1470-1485. 
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IJSEM list:
Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 62, part 7 of the IJSEM. Int J Syst Evol Microbiol 2012; 62:2313-2314.
Nomenclatural status: validly published under the ICNP
Taxonomic status: correct name
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Synonyms:
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Name Kind Caldifermentibacillus Yang et al. 2023 heterotypic synonym, validly published under the ICNP Perspicuibacillus Yang et al. 2023 heterotypic synonym, validly published under the ICNP Pallidibacillus Yang et al. 2023 heterotypic synonym, validly published under the ICNP
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Emendations:
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Gupta et al. 2020
Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798. 🇨🇦
Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.
Notes:- ⊕ Emendation accompanied by the proposal of 5 new species in the genus.
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Gupta et al. 2020
Gupta RS, Patel S, Saini N, Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. Int J Syst Evol Microbiol 2020; 70:5753-5798.
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Notes:
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🥇 Nomenclatural type of the family Caldibacillaceae 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. 🇦🇺
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🧕 Chuvochina et al. (2023) assigned this genus to the family Caldibacillaceae 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. 🇦🇺
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🧕 Li et al. (2024) assigned this genus to the family Caldibacillaceae Chuvochina et al. 2024.
Publication:
Li Y, Zhang D, Bo D, Peng D, Sun M, Zheng J. A taxonomic note on the order Caryophanales: description of 12 novel families and emended description of 21 families. Int J Syst Evol Microbiol 2024; 74:6539. 🇨🇳
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🚋 The type species of this genus has alternatively been placed in the genus Geobacillus Nazina et al. 2001.
Publication:
Banat IM, Marchant R, Rahman TJ. Geobacillus debilis sp. nov., a novel obligately thermophilic bacterium isolated from a cool soil environment, and reassignment of Bacillus pallidus to Geobacillus pallidus comb. nov. Int J Syst Evol Microbiol 2004; 54:2197-2201. 🇬🇧
- 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Calidibacillus".
- 😡 This taxon name is a homonym of "Caldibacillus" Sunna et al. 2000.
- 💁 Taxonomists who have recently focused on this group are the corresponding authors of Coorevits et al. (2012). 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 phylogenomic assignment score of this taxon is -0.03071 (N = 11).
- 🎰 The BRCs most frequently used for deposits in this group are: DSM: 3; JCM: 2; LMG: 2; NBRC: 1; CECT: 1; NCIMB: 1; KCTC: 1; BCRC: 1; NCCB: 1.
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🥇 Nomenclatural type of the family Caldibacillaceae 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.
Number of child taxa with a validly published and correct name: 6
Number of child taxa with a validly published name, including synonyms: 6
Total number of child taxa: 6
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Child taxa:
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Name Nomenclatural status Taxonomic status Caldibacillus debilis (Banat et al. 2004) Coorevits et al. 2012 validly published under the ICNP correct name Caldibacillus hisashii (Nishida et al. 2015) Gupta et al. 2020 validly published under the ICNP correct name Caldibacillus kokeshiiformis (Poudel et al. 2014) Gupta et al. 2020 validly published under the ICNP correct name Caldibacillus lycopersici (Lin et al. 2015) Gupta et al. 2020 validly published under the ICNP correct name Caldibacillus pasinlerensis (Baltaci et al. 2020) Gupta et al. 2020 validly published under the ICNP correct name Caldibacillus thermolactis (Coorevits et al. 2011) Gupta et al. 2020 validly published under the ICNP correct name
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Parent taxon: Bacillaceae Fischer 1895 (Approved Lists 1980)
Assigned by:
Coorevits A, Dinsdale AE, Halket G, Lebbe L, De Vos P, Van Landschoot A, Logan NA. Taxonomic revision of the genus Geobacillus: emendation of Geobacillus, G. stearothermophilus, G. jurassicus, G. toebii, G. thermodenitrificans and G. thermoglucosidans (nom. corrig., formerly 'thermoglucosidasius'); transfer of Bacillus thermantarcticus to the genus as G. thermantarcticus comb. nov.; proposal of Caldibacillus debilis gen. nov., comb. nov.; transfer of G. tepidamans to Anoxybacillus as A. tepidamans comb. nov.; and proposal of Anoxybacillus caldiproteolyticus sp. nov. Int J Syst Evol Microbiol 2012; 62:1470-1485. 🇧🇪
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Record number: 515293
This LPSN page was printed on 2026-03-08 11:09:43