Laotian rock rat
Species of rodent found in central Laos / From Wikipedia, the free encyclopedia
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The Laotian rock rat or kha-nyou[2] (Laonastes aenigmamus, Lao: ຂະຍຸ), sometimes called the "rat-squirrel", is a species of rodent found in the Khammouan region of Laos. The species was first described in a 2005 article by Paulina Jenkins and coauthors, who considered the animal to be so distinct from all living rodents, they placed it in a new family, Laonastidae. It is in the monotypic genus Laonastes.
Laotian rock rat Temporal range: Late Miocene-Recent | |
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Young male | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Diatomyidae |
Genus: | Laonastes Jenkins, Kilpatrick, Robinson & Timmins, 2005 |
Species: | L. aenigmamus |
Binomial name | |
Laonastes aenigmamus Jenkins, Kilpatrick, Robinson & Timmins, 2005 | |
In 2006, the classification of the Laotian rock rat was disputed by Mary Dawson and coauthors. They suggested the rat belongs to the ancient fossil family Diatomyidae, which was thought to have been extinct for 11 million years,[3] since the late Miocene. It would thereby represent a Lazarus species. The animals resemble large, dark rats with hairy, thick tails like those of a squirrel. Their skulls are very distinctive and have features that separate them from all other living mammals.