Viridomys is a genus of extinct mammal from the Upper Cretaceous of North America. It was a member of the extinct order of Multituberculata, and lived during the Mesozoic, also known as the "age of the dinosaurs." It's within the suborder of Cimolodonta, though its further affinities are unclear.

Quick Facts Viridomys Temporal range: Late Cretaceous, Scientific classification ...

Viridomys Temporal range: Late Cretaceous
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Multituberculata
Genus:	†Viridomys
Species:	†V. orbatus
Binomial name
†Viridomys orbatus Fox R.C., 1971

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The primary species, Viridomys orbatus, is known from fossils found in Campanian (Upper Cretaceous)-aged strata of the Upper Milk River Formation in Alberta, Canada. Possible remains have also been found in Dogie Mountain, Texas (United States). The Texas site is believed to be Paleocene in age.

• Fox (1971), "Early Campanian multituberculates (Mammalia: Allotheria) from the upper Milk River Formation, Alberta", Canadian Journal of Earth Sciences 8, p. 916-938.
• Kielan-Jaworowska, Z. & Hurum, J.H. (2001), "Phylogeny and Systematics of multituberculate mammals", Paleontology 44, p. 389-429.
• Much of this information has been derived from Mesozoic Mammals: "basal" Cimolodonta, Cimolomyidae, Boffiidae and Kogaionidae, an Internet directory.