Unicolored Oldfield mouse
species of mammal

The unicolored Oldfield mouse (Thomasomys monochromos) is a species of rodent in the family Cricetidae.
It is found only in Colombia.
References
Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.
“Unicolored Oldfield mouse” enters the record as species of mammal. Crown Archives preserves that source wording while asking what Unicolored, Oldfield and mouse can confirm, complicate or overturn.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Oct 5, 2025. The linked authority identifier is Q1767834. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2005 and 1531.
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This entry incorporates text from “Unicolored Oldfield mouse” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.