Glis is a genus of rodent that contains two extant species, both known as edible dormice or fat dormice: the European edible dormouse (Glis glis) and the Iranian edible dormouse (Glis persicus). It also contains a number of fossil species.^[1]

Quick Facts Glis Temporal range: Oligocene - Recent, Scientific classification ...

Glis Temporal range: Oligocene - Recent
European edible dormouse (Glis glis)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Gliridae
Subfamily:	Glirinae
Genus:	Glis Brisson, 1762
Type species
Sciurus glis
Species
Glis glis Glis persicus †Glis apertus †Glis galitopouli †Glis guerbuezi †Glis major †Glis minor †Glis sackdillingensis †Glis sussenbornensis †Glis transversus †Glis vallesiensis

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The genus Glis originated in the mid-Oligocene. It did not become common until the Pliocene. Only one species, Glis sackdillingensis is known to have survived into the Pleistocene. This is probably likely the ancestor of the modern species, which appeared in the early to mid-Pleistocene.^[2]

One former species, Glis truyolsi, has been placed in the genus Myoglis and it has been suggested that G. apertus, G. galitopouli, G. guerbuezi, G. major and G. transversus be moved there as well.^[3]

The first mention of the word dormouse was in the early 15th century, possibly coming from Anglo-French *dormouse "tending to be dormant" (from stem of dormir "to sleep," see dormant), with the second element mistaken for mouse; or perhaps it is from a Middle English dialectal compound of mouse (n.) and French dormir. French dormeuse, fem. of dormeur "sleeper" is attested only from 17c.