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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Theriodontia
Subordo: Cynodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohort: Theria
Cohort: Eutheria
Cohort: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentia
Subordo: Sciuromorpha

Familia: Sciuridae
Subfamilia: Sciurinae
Tribus: Sciurini
Genus: Tamiasciurus
Species: T. douglasii - T. hudsonicus - T. mearnsi

Tamiasciurus Trouessart, 1880

Tamiasciurus in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.

Vernacular names

Pine squirrels are squirrels of the genus Tamiasciurus, in the Sciurini tribe, of the large family Sciuridae.


This genus includes three species:[2]

All three species are native to North America. Pine squirrels can be found in the northern and western United States, most of Canada, Alaska, and northwestern Mexico.

Pine squirrels, Tamiasciurus species, are small tree squirrels with bushy tails. Along with members of the genus Sciurus, they are members of the Sciurini tribe.

The name Tamiasciurus comes from the Greek "Ταμίας" "Σκίουρος" for "hoarder squirrel".

The American red squirrel should not be confused with the Eurasian red squirrel (Sciurus vulgaris) — both are usually just referred to as the "red squirrel" in their home continents.

Pine squirrels rely on a variety of food sources including fungi, plants, arthropods and tree seed.[4]

Thorington, R.W. Jr.; Hoffmann, R.S. (2005). "Family Sciuridae". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: a taxonomic and geographic reference (3rd ed.). The Johns Hopkins University Press. pp. 754–818. ISBN 0-8018-8221-4. OCLC 26158608.
Mammal Diversity Database (2021-08-10), Mammal Diversity Database, Zenodo, retrieved 2021-09-11
"Explore the Database". Retrieved 2021-09-10.
McKeever, Sturgis (1964). "Food Habits of the Pine Squirrel in Northeastern California". The Journal of Wildlife Management. 28 (2): 402–404. doi:10.2307/3798105. ISSN 0022-541X. JSTOR 3798105.

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