Tamiasciurus hudsonicus

The American red squirrel is one of three species of tree squirrels currently classified in the genus Tamiasciurus, known as the pine squirrels. The American red squirrel is variously known as the pine squirrel or piney squirrel, North American red squirrel, chickaree, boomer, or simply red squirrel. The squirrel is a small, 200–250 g (7.1–8.8 oz), diurnal mammal that defends a year-round exclusive territory. It feeds primarily on the seeds of conifer cones, and is widely distributed across much of the United States and Canada wherever conifers are common, except in the southwestern United States, where it is replaced by the formerly conspecific southwestern red squirrel, and along the Pacific coast of the United States, where its cousin the Douglas squirrel is found instead.

Tamiasciurus hudsonicus

Charles J. Sharp · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Also called
American red squirrelPBDB
Sits inside
TamiasciurusPBDB
Diet
granivore, frugivorePBDB, for Sciuridae
Life habit
arborealPBDB, for Tamiasciurus
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 198 thousand years on record.

The record covers at least 210 ka to 11.7 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.

Pliocene — about 0 of 33 occurrencesPleistocene — about 28 of 33 occurrencesPleistoceneHolocene — about 5 of 33 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.2 occurrences2.5–2.4 Mya — about 0.2 occurrences2.4–2.3 Mya — about 0.2 occurrences2.3–2.2 Mya — about 0.2 occurrences2.2–2.1 Mya — about 0.2 occurrences2.1–2.0 Mya — about 0.2 occurrences2.0–1.8 Mya — about 0.2 occurrences1.8–1.7 Mya — about 0.2 occurrences1.7–1.6 Mya — about 0.2 occurrences1.6–1.5 Mya — about 0.2 occurrences1.5–1.4 Mya — about 0.2 occurrences1.4–1.3 Mya — about 0.6 occurrences1.3–1.2 Mya — about 0.9 occurrences1.2–1.1 Mya — about 0.9 occurrences1.1–1.0 Mya — about 0.9 occurrences1.0–924 ka Mya — about 0.9 occurrences924 ka–821 ka Mya — about 0.9 occurrences821 ka–719 ka Mya — about 0.9 occurrences719 ka–616 ka Mya — about 0.9 occurrences616 ka–513 ka Mya — about 0.9 occurrences513 ka–411 ka Mya — about 0.9 occurrences411 ka–308 ka Mya — about 0.9 occurrences308 ka–205 ka Mya — about 0.9 occurrences205 ka–103 ka Mya — about 4 occurrences103 ka–0 Mya — about 17 occurrences210 ka – 11.7 ka3.08 Mya0 Mya

33 occurrences of Tamiasciurus hudsonicus on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.

When

33 occurrences

These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.

Tamiasciurus hudsonicus and its relatives

Pleistocene

Where Tamiasciurus hudsonicus and its relatives were recorded in the Pleistocene.

Found in the same rock

598 taxa

The Paleobiology Database records 30 sites for Tamiasciurus hudsonicus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.

This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.

Entered from

23 references

Each of the 33 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 11 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Tamiasciurus hudsonicus

Credit
Charles J. Sharp
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itTamiasciurus through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Erxleben 1777)