Temporal range:
Various members of the family Sciuridae
Callosciurus prevostii Eutamias sibiricus Tamiasciurus hudsonicus
Sciurus niger Urocitellus columbianus Paraxerus cepapi
Geosciurus inauris Marmota sp. Cynomys ludovicianus
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Suborder: Sciuromorpha
Family: Sciuridae
Fischer de Waldheim, 1817
Type genus
Linnaeus, 1758
Subfamilies and tribes

Squirrels are members of the family Sciuridae (/sɪˈjrɪd, -d/), a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrels. Squirrels are indigenous to the Americas, Eurasia, and Africa, and were introduced by humans to Australia.[1] The earliest known fossilized squirrels date from the Eocene epoch, and among other living rodent families, the squirrels are most closely related to the mountain beaver and to the dormice.[citation needed]

  1. ^ Seebeck, J. H. "Sciuridae" (PDF). Fauna of Australia. Archived from the original (PDF) on 17 January 2015. Retrieved 24 November 2013.

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