Name: Geobacillus caldiproteolyticus corrig. Chen et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: cal.di.pro.te.o.ly’ti.cus. N.L. masc. adj. proteolyticus, proteolytic; N.L. masc. adj. caldiproteolyticus, hot and protein degrading

Pronunciation (Latin), gender: … kal-di-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: validly published under the ICNP, belated name

Taxonomic status: synonym

Correct name: Thermaerobacillus caldiproteolyticus (Coorevits et al. 2012) Patel et al. 2024

• Synonyms:

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

• Notes:
  • ❗ Geobacillus caldiproteolyticus is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Geobacillus.
  • 🎓 Name mentioned 0 times in PubMed until 2025-12-16.

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: 69473