Mass: 187 g based on Aleksiuk 1971, Layne 1954, and Vernes 2004

Abundance: 0.03 to 67.46% (median 1.30%)

Latitudinal range: 36.3° to 56.8°

Habitats: (17), boreal forest/taiga (6), temperate broadleaf/mixed forest (5)

Found in 28 samples

Canada: Kinmount, Prince Albert Model Forest, Prince Edward Island National Park, Lindsay, Keffer (Midden 57, screened) (Holocene), Keffer (Midden 57, floated) (Holocene), McNichol Creek (midden) (Holocene), Irving-Johnston (Holocene), Caverne de la Mine (lower infill) (Holocene), Winefred Lake, EMEND site (retention level 100%, replicate 1), EMEND site (retention level 100%, replicate 2), EMEND site (retention level 100%, replicate 3), Algar

United States: Fort Necessity National Battlefield, MacIntyre Development (forest habitats), Welsh Cave (Late Pleistocene), Bat Cave (Late Pleistocene), King Leo Pit Cave (Late Pleistocene), Dead Indian Creek (Holocene), Pine Hill (Holocene), Cole Gravel Pit (Holocene), Prairie Creek (Zone D) (Late Pleistocene), Robinson Cave (Late Pleistocene), Bootlegger Sink (Pleistocene - Holocene), New Paris Sinkhole No. 4 (Late Pleistocene), Natural Chimneys (Late Pleistocene), Cumberland Cave (Middle Pleistocene)

body mass	212 g	N = 7	Aleksiuk 1971
body mass	220 g	N = 6	Aleksiuk 1971
body mass	221 g	N = 12	Aleksiuk 1971
body mass	191 g	N = 6	Aleksiuk 1971
body mass	191 g	N = 7	Aleksiuk 1971
body mass	184 g	N = 11	Aleksiuk 1971
body mass	205 g	N = 9	Aleksiuk 1971
body mass	194 g	N = 6	Aleksiuk 1971
body mass	214 g	N = 11	Aleksiuk 1971
body mass	210 g	N = 10	Aleksiuk 1971
body mass	205 g	N = 12	Aleksiuk 1971
♀ body mass	188.80 g	N = 99	Layne 1954
♂ body mass	193.70 g	N = 186	Layne 1954
body mass	151.6 g	N = 76	Vernes 2004
♀ head and body length	185.2 mm	N = 107	Layne 1954
♂ head and body length	184.7 mm	N = 149	Layne 1954
♀ hind foot length	47.6 mm	N = 107	Layne 1954
♂ hind foot length	48.2 mm	N = 149	Layne 1954
hind foot length	43.1 mm	N = 72	Vernes 2004
♂ skull length	45.64 mm	N = 50	Layne 1954
♂ skull length	45.47 mm	N = 50	Layne 1954
♂ skull width	26.48 mm	N = 50	Layne 1954
♂ skull width	26.56 mm	N = 50	Layne 1954
♀ tail length	125.0 mm	N = 107	Layne 1954
♂ tail length	123.7 mm	N = 149	Layne 1954
tail length	116.3 mm	N = 70	Vernes 2004
♀ total body length	310.2 mm	N = 107	Layne 1954
♂ total body length	310.1 mm	N = 149	Layne 1954
♂ upper tooth row length	7.20 mm	N = 50	Layne 1954
♂ upper tooth row length	7.32 mm	N = 50	Layne 1954

See also Tamiasciurus, Tamiasciurus sp.