Name: Geobacillus caldoproteolyticus Chen et al. 2025

Category: Species

Proposed as: sp. nov.

Pronunciation, gender: … kal-do-pro-te-o-LY-ti-kus, masculine

Type strain: ATCC BAA-818; DSM 15730; LMG 26209; R-35652; SF03

Conduct genome-based taxonomy at

16S rRNA gene: AY327448 Analyse FASTA

Effective publication: Chen XG, Stabnikova O, Tay JH, Wang JY, Tay ST. Thermoactive extracellular proteases of Geobacillus caldoproteolyticus, sp. nov., from sewage sludge. Extremophiles 2004; 8:489-498. 🇸🇬

IJSEM list: Oren A, Göker M. Validation list no. 226. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2025; 75:6910.

Nomenclatural status: inaccurate spelling

Taxonomic status: misspelling

Correct name: Geobacillus caldiproteolyticus corrig. Chen et al. 2025

• Synonyms:

  • Name	Kind
    Anoxybacillus caldiproteolyticus Coorevits et al. 2012	homotypic synonym, validly published under the ICNP
    Geobacillus caldiproteolyticus corrig. Chen et al. 2025	corrected spelling of name, validly published under the ICNP, belated name
    Thermaerobacillus caldiproteolyticus (Coorevits et al. 2012) Patel et al. 2024	homotypic synonym, validly published under the ICNP

• Notes:
  • 🎓 Name mentioned 2 times in PubMed until 2025-12-16.
  • 🧍 "Geobacillus caldoproteolyticus" Chen et al. is now known as Anoxybacillus caldiproteolyticus Coorevits et al. 2012. 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. 🇧🇪

Parent taxon: Geobacillus Nazina et al. 2001

Assigned by: Chen XG, Stabnikova O, Tay JH, Wang JY, Tay ST. Thermoactive extracellular proteases of Geobacillus caldoproteolyticus, sp. nov., from sewage sludge. Extremophiles 2004; 8:489-498. 🇸🇬

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Record number: 69529