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NATURAL HISTORY · CATALOGUE RECORD

Ashy-bellied Oldfield Mouse

Thomasomys cinereiventer J. A. Allen, 1912

Source-backed taxonomic record

Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Identity & source status

Scientific name
Thomasomys cinereiventer J. A. Allen, 1912
Name authority
J. A. Allen, 1912
Common name
Ashy-bellied Oldfield Mouse
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Cricetidae
Genus
Thomasomys
Extinction status
Recorded extant

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. megaclassTetrapoda
  8. classMammalia Linnaeus, 1758
  9. subclassTheria Parker & Haswell, 1897
  10. infraclassEutheria Gill, 1872
  11. orderRodentia Bowdich, 1821
  12. suborderMyomorpha Brandt, 1855
  13. superfamilyMuroidea Illiger, 1811
  14. familyCricetidae Fischer, 1817
  15. subfamilySigmodontinae Wagner, 1843
  16. genusThomasomys Coues, 1884
  17. speciesThomasomys cinereiventer J. A. Allen, 1912

Close classified relatives

These entries share the source’s genus, Thomasomys. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Golden Oldfield MouseThomasomys aureus (Tomes, 1860)CricetidaeChordataAccepted speciesRecorded extant
Beady-eyed MouseThomasomys baeops (Thomas, 1899)CricetidaeChordataAccepted speciesRecorded extant
Cinnamon-colored ThomasomysThomasomys cinnameus Anthony, 1924CricetidaeChordataAccepted speciesRecorded extant
Peruvian Oldfield MouseThomasomys eleusis Thomas, 1926CricetidaeChordataAccepted speciesRecorded extant
Gracile ThomasomysThomasomys gracilis Thomas, 1917CricetidaeChordataAccepted speciesRecorded extant
Hudson's ThomaomysThomasomys hudsoni Anthony, 1923CricetidaeChordataAccepted speciesRecorded extant
Ladew's Oldfield MouseThomasomys ladewi Anthony, 1926CricetidaeChordataAccepted speciesRecorded extant
Large-eared ThomasomysThomasomys macrotis Gardner & Romo R., 1993CricetidaeChordataAccepted speciesRecorded extant
Unicolored Oldfield MouseThomasomys monochromos Bangs, 1900CricetidaeChordataAccepted speciesRecorded extant
Rhoads's Oldfield MouseThomasomys rhoadsi Stone, 1914CricetidaeChordataAccepted speciesRecorded extant
Ucucha ThomasomysThomasomys ucucha Voss, 2003CricetidaeChordataAccepted speciesRecorded extant
Dressy Oldfield MouseThomasomys vestitus (Thomas, 1898)CricetidaeChordataAccepted speciesRecorded extant

Browse 593 records assigned to Cricetidae.

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

South America

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

  1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=633369 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:56JK2. Classification follows source parent identifiers. English common names may vary by region.