Marinho's Oryzomys

Open encyclopedia reference

Cerradomys marinhus, also known as Marinho's rice rat, is a rodent species from South America. It is found in Minas Gerais, Brazil. It was formerly known as Oryzomys marinhus, but was transferred to the new genus Cerradomys in 2006.

Cerradomys marinhus is a brown rat with black lines along its back, a gray- to yellowish-buff venter, and a bicolored, scarcely-haired tail. It measures 153 to 179 millimetres (6.0 to 7.0 inches) in length, not including the tail which is an additional 198 to 212 mm (7.8 to 8.3 in). Its skull is robust and large. The species' diploid chromosome number is 56. All that is known about its reproduction is that pregnant rats have been found during both dry and rainy seasons, and in each case 2 to 4 embryos were present.

The preferred habitat of C. marinhus is cerrado in flooded grasslands and semideciduous forest.

Wikipedia contributors, Cerradomys marinhus; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T06:56:19.827927+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Cerradomys marinhus (Bonvicino, 2003)

Name authority

(Bonvicino, 2003)

Common name

Marinho's Oryzomys

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Cricetidae

Genus

Cerradomys

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. genusCerradomys Weksler, Percequillo & Voss, 2006
17. speciesCerradomys marinhus (Bonvicino, 2003)

Close classified relatives

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

Browse 593 records assigned to Cricetidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

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.

1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=972460 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:5XMXD. Classification follows source parent identifiers. English common names may vary by region.