Necromys lactens

The rufous-bellied bolo mouse or white-chinned akodont, is a species of rodent in the family Cricetidae. It is found in Argentina and Bolivia where it inhabits the dry valleys of the eastern Andes. Its conservation status is listed by the International Union for Conservation of Nature as being of "least concern".

Necromys lactens

Ignacio Ferro · CC BY 4.0 · via GBIF. 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
Sits inside
NecromysPBDB
Diet
herbivorePBDB, for Rodentia
Life habit
ground dwellingPBDB, for Rodentia
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 2 thousand years on record.

The record covers at least 14 ka to 11.7 ka. No occurrence read is dated outside 210 ka to 0 Mya.

Pleistocene — about 2 of 3 occurrencesPleistoceneHolocene — about 1 of 3 occurrences213 ka–189 ka Mya — about 0.1 occurrences189 ka–166 ka Mya — about 0.1 occurrences166 ka–142 ka Mya — about 0.1 occurrences142 ka–118 ka Mya — about 0.2 occurrences118 ka–95 ka Mya — about 0.3 occurrences95 ka–71 ka Mya — about 0.3 occurrences71 ka–47 ka Mya — about 0.3 occurrences47 ka–24 ka Mya — about 0.3 occurrences24 ka–0 Mya — about 1 occurrence14 ka – 11.7 ka710 ka0 Mya

3 occurrences of Necromys lactens 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

3 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

2 formations

Nuapua — 20.87°S, 63.07°WTafí del Valle — 26.92°S, 65.70°W

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The named rock units Necromys lactens has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Necromys lactens and its relatives

Pleistocene

Where Necromys lactens and its relatives were recorded in the Pleistocene.

Found in the same rock

33 taxa

The Paleobiology Database records 2 sites for Necromys lactens, 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

3 references

Each of the 3 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. 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 Necromys lactens

Source
GBIF
Credit
Ignacio Ferro
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Necromys lactens 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 itNecromys through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Thomas 1918