NATURAL HISTORY · CATALOGUE RECORD
Miahuatlán Cotton Rat
Sigmodon (Sigmodon) planifrons Nelson & Goldman, 1933
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.
Open encyclopedia reference
The Miahuatlán cotton rat (Sigmodon planifrons) was formerly considered a rodent species in the family Cricetidae. It is found only on the Pacific slope of the Sierra de Miahuatlán in the Mexican state of Oaxaca, where it lives in a deciduous tropical forest. The IUCN currently considers it to be conspecific with Sigmodon alleni.
Wikipedia contributors, Miahuatlán cotton rat; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T09:14:35.451473+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Sigmodon (Sigmodon) planifrons Nelson & Goldman, 1933
- Name authority
- Nelson & Goldman, 1933
- Common name
- Miahuatlán Cotton Rat
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Sigmodon
- 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.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumOsteichthyes
- megaclassTetrapoda
- classMammalia Linnaeus, 1758
- subclassTheria Parker & Haswell, 1897
- infraclassEutheria Gill, 1872
- orderRodentia Bowdich, 1821
- suborderMyomorpha Brandt, 1855
- superfamilyMuroidea Illiger, 1811
- familyCricetidae Fischer, 1817
- subfamilySigmodontinae Wagner, 1843
- genusSigmodon Say & Ord, 1825
- subgenusSigmodon Say & Ord, 1825
- speciesSigmodon (Sigmodon) planifrons Nelson & Goldman, 1933
Close classified relatives
These entries share the source’s genus, Sigmodon. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Ecuadorian Cotton RatSigmodon (Sigmodon) inopinatus Anthony, 1924 | CricetidaeChordata | Accepted speciesRecorded extant |
| Hispid Cotton RatSigmodon (Sigmodon) hispidus Say & Ord, 1825 | CricetidaeChordata | Accepted speciesRecorded extant |
| White-eared Cotton RatSigmodon (Sigmodon) leucotis Bailey, 1902 | CricetidaeChordata | Accepted speciesRecorded extant |
| Southern Cotton RatSigmodon (Sigmodon) hirsutus (Burmeister, 1854) | CricetidaeChordata | Accepted speciesRecorded extant |
| Peruvian Cotton RatSigmodon (Sigmodon) peruanus J. A. Allen, 1897 | CricetidaeChordata | Accepted speciesRecorded extant |
| Toltec Cotton RatSigmodon (Sigmodon) toltecus (Saussure, 1860) | CricetidaeChordata | Accepted speciesRecorded extant |
| Allen's Cotton RatSigmodon (Sigmodon) alleni Bailey, 1902 | CricetidaeChordata | Accepted speciesRecorded extant |
| Tawny-bellied Cotton RatSigmodon (Sigmodon) fulviventer J. A. Allen, 1889 | CricetidaeChordata | Accepted speciesRecorded extant |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Sigmodon planifrons minor Goodwin, 1955 Goodwin, 1955 | synonym |
| Sigmodon planifrons setzeri Goodwin, 1959 Goodwin, 1959 | synonym |
Documented distribution
Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.
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.
- https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=970736 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:6YPDJ. Classification follows source parent identifiers. English common names may vary by region.