Microtus californicus

The California vole is a type of vole which lives throughout much of California and part of southwestern Oregon. It is also known as the "California meadow mouse", a misnomer as this species is a vole, not a mouse. It averages 172 mm (6.8 in) in length although this length varies greatly between subspecies.

Microtus californicus

Jerry Kirkhart · CC BY 2.0 · 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
California volePBDB
Sits inside
MicrotusPBDB
Diet
herbivorePBDB, for Rodentia
Life habit
ground dwellingPBDB, for Microtus
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 81 thousand years on record.

The record covers at least 210 ka to 129 ka. No occurrence read is dated outside 2.58 Mya to 11.7 ka.

Pliocene — about 0 of 21 occurrencesPleistocene — about 21 of 21 occurrencesPleistoceneHolocene — about 0 of 21 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.0 occurrences2.5–2.4 Mya — about 0.0 occurrences2.4–2.3 Mya — about 0.0 occurrences2.3–2.2 Mya — about 0.0 occurrences2.2–2.1 Mya — about 0.0 occurrences2.1–2.0 Mya — about 0.0 occurrences2.0–1.8 Mya — about 0.0 occurrences1.8–1.7 Mya — about 0.0 occurrences1.7–1.6 Mya — about 0.0 occurrences1.6–1.5 Mya — about 0.0 occurrences1.5–1.4 Mya — about 0.0 occurrences1.4–1.3 Mya — about 0.7 occurrences1.3–1.2 Mya — about 1 occurrence1.2–1.1 Mya — about 1 occurrence1.1–1.0 Mya — about 1 occurrence1.0–924 ka Mya — about 1 occurrence924 ka–821 ka Mya — about 1 occurrence821 ka–719 ka Mya — about 1 occurrence719 ka–616 ka Mya — about 1 occurrence616 ka–513 ka Mya — about 1 occurrence513 ka–411 ka Mya — about 1 occurrence411 ka–308 ka Mya — about 1 occurrence308 ka–205 ka Mya — about 1 occurrence205 ka–103 ka Mya — about 2 occurrences103 ka–0 Mya — about 5 occurrences210 ka – 129 ka3.08 Mya0 Mya

21 occurrences of Microtus californicus 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

21 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.

Found in

7 formations

"unnamed sandstone" — 33.90°N, 117.00°WLa Habra — 33.60°N, 117.80°WOcotillo — 32.90°N, 117.10°WPauba — 33.90°N, 117.00°WSan Timoteo — 33.90°N, 117.00°WPalos Verdes Sand — 34.00°N, 118.20°WSan Pedro — 33.75°N, 118.28°W

Loading coastlines…

The named rock units Microtus californicus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Microtus californicus and its relatives

Pleistocene

Where Microtus californicus and its relatives were recorded in the Pleistocene.

Found in the same rock

362 taxa

The Paleobiology Database records 21 sites for Microtus californicus, 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

15 references

Each of the 21 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. 3 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 content1

Picture of Microtus californicus

Credit
Jerry Kirkhart
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Microtus californicus was found in Sketchfab.

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 itMicrotus through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Peale 1848)