Name: Caldimonas Takeda et al. 2002

Category: Genus

Proposed as: gen. nov.

Etymology: Cal.di’mo.nas. L. masc. adj. caldus, hot; L. fem. n. monas, unit, monad; N.L. fem. n. Caldimonas, hot (heat-loving) monad

Gender, pronunciation: feminine (stem: Caldimonad-), kal-DI-mo-nas

Type species: Caldimonas manganoxidans Takeda et al. 2002

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Takeda M, Kamagata Y, Ghiorse WC, Hanada S, Koizumi J. Caldimonas manganoxidans gen. nov., sp. nov., a poly(3-hydroxybutyrate)-degrading, manganese-oxidizing thermophile. Int J Syst Evol Microbiol 2002; 52:895-900.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 3 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:1077-1079.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Zhizhongheella Dong et al. 2014	heterotypic synonym, validly published under the ICNP
    Caenibacterium Manaia et al. 2003	heterotypic synonym, validly published under the ICNP
    Schlegelella Elbanna et al. 2003	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Liu et al. 2022 Liu Y, Du J, Pei T, Du H, Feng GD, Zhu H. Genome-based taxonomic classification of the closest-to-Comamonadaceae group supports a new family Sphaerotilaceae fam. nov. and taxonomic revisions. Syst Appl Microbiol 2022; 45:126352. Oren A, Göker M. List of changes in taxonomic opinion no. 37. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2023; 73:5696.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 4 new species in the genus.
  • Yang et al. 2023 Yang SR, Liu YY, Ge XF, Liu WZ. Caldimonas mangrovi sp. nov., isolated from mangrove soil. Microbiology (Russia) 2023; 92:500-507. Oren A, Göker M. List of changes in taxonomic opinion no. 39. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2024; 74:6172.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.

• Notes:
  • 🧕 Takeda et al. (2002) assigned this genus to the family Comamonadaceae Willems et al. 1991. Publication: Takeda M, Kamagata Y, Ghiorse WC, Hanada S, Koizumi J. Caldimonas manganoxidans gen. nov., sp. nov., a poly(3-hydroxybutyrate)-degrading, manganese-oxidizing thermophile. Int J Syst Evol Microbiol 2002; 52:895-900.
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Luetke-Eversloh et al. (2004), Khan et al. (2019), Chou et al. (2006). 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 0.03656 (N = 7).
  • 🎰 The BRCs most frequently used for deposits in this group are: LMG: 6; JCM: 4; BCRC: 4; DSM: 4; NBRC: 3; KCTC: 3; ATCC: 2; CCTCC: 1; CGMCC: 1; CCUG: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 9
Number of child taxa with a validly published name, including synonyms: 9
Total number of child taxa: 13

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Caldimonas aquatica (Chou et al. 2006) Lu and Chen 2024	validly published under the ICNP	correct name
    "Caldimonas aquatica" (Chou et al. 2006) Musilova et al. 2023	not validly published	synonym
    Caldimonas brevitalea (Tang et al. 2019) Liu et al. 2023	validly published under the ICNP	correct name
    Caldimonas caldifontis (Dong et al. 2014) Liu et al. 2023	validly published under the ICNP	correct name
    Caldimonas hydrothermale Bouraoui et al. 2025	inaccurate spelling	misspelling
    Caldimonas hydrothermalis corrig. Bouraoui et al. 2025	validly published under the ICNP	correct name
    "Caldimonas koreensis" (Chaudhary et al. 2022) Musilova et al. 2023	not validly published	synonym
    Caldimonas manganoxidans Takeda et al. 2002	validly published under the ICNP	correct name
    Caldimonas mangrovi Yang et al. 2025	validly published under the ICNP	correct name
    "Caldimonas meghalayensis" Rakshak et al. 2013	not validly published	preferred name
    Caldimonas taiwanensis Chen et al. 2005	validly published under the ICNP	correct name
    Caldimonas tepidiphila (Khan et al. 2019) Liu et al. 2023	validly published under the ICNP	correct name
    Caldimonas thermodepolymerans (Elbanna et al. 2003) Liu et al. 2023	validly published under the ICNP	correct name

Parent taxon: Sphaerotilaceae Liu et al. 2023

Assigned by: Lu H, Chen L. Ideonella margarita sp. nov., Ideonella lacteola sp. nov., Pseudaquabacterium inlustre sp. nov. and Pseudaquabacterium rugosum sp. nov., isolated from streams in China and re-examining the taxonomic status of all the genera within the family Sphaerotilaceae. Int J Syst Evol Microbiol 2024; 74:6495.

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Record number: 517193