Lutreolina crassicaudata

The big lutrine opossum, also called little water opossum, thick-tailed opossum and coligrueso, is a long-tailed, otter-like mammal native to grasslands of South America. It generally lives near water and is active at night, dawn or dusk. It eats mice, insects and crabs. Like all opossums, it is a marsupial and carries its young in a pouch.

Lutreolina crassicaudata

Ezequiel Racker · CC BY 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
lutrine opossumPBDB
Sits inside
LutreolinaPBDB
Diet
omnivore, carnivorePBDB, for Didelphidae
Life habit
scansorialPBDB, for Didelphidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Didelphidae

Time the record covers

At least 2.9 million years on record.

The record covers at least 3 Mya to 11.7 ka. No occurrence read is dated outside 3.8 Mya to 0 Mya.

Pliocene — about 2 of 4 occurrencesPliocenePleistocene — about 1 of 4 occurrencesPleistoceneHolocene — about 1 of 4 occurrences3.9–3.7 Mya — about 0.2 occurrences3.7–3.6 Mya — about 0.4 occurrences3.6–3.4 Mya — about 0.4 occurrences3.4–3.3 Mya — about 0.4 occurrences3.3–3.2 Mya — about 0.4 occurrences3.2–3.0 Mya — about 0.4 occurrences3.0–2.9 Mya — about 0.0 occurrences2.6–2.4 Mya — about 0.1 occurrences2.4–2.3 Mya — about 0.1 occurrences2.3–2.1 Mya — about 0.1 occurrences2.1–2.0 Mya — about 0.1 occurrences2.0–1.9 Mya — about 0.1 occurrences1.9–1.7 Mya — about 0.1 occurrences1.7–1.6 Mya — about 0.1 occurrences1.6–1.4 Mya — about 0.1 occurrences1.4–1.3 Mya — about 0.1 occurrences1.3–1.1 Mya — about 0.1 occurrences1.1–1.0 Mya — about 0.1 occurrences1.0–860 ka Mya — about 0.1 occurrences860 ka–717 ka Mya — about 0.0 occurrences143 ka–0 Mya — about 1 occurrence3 Mya11.7 ka4.3 Mya0 Mya

4 occurrences of Lutreolina crassicaudata on record, most of them in the Pliocene. 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

4 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

3 formations

Chapadmalal — 38.00°S, 58.00°WTarija — 21.53°S, 64.73°WBotucatu — 29.56°S, 51.40°W

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The named rock units Lutreolina crassicaudata has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Lutreolina crassicaudata and its relatives

Pliocene

Where Lutreolina crassicaudata and its relatives were recorded in the Pliocene.

Found in the same rock

89 taxa

The Paleobiology Database records 4 sites for Lutreolina crassicaudata, 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 4 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 content2

Picture of Lutreolina crassicaudata

Credit
Ezequiel Racker
Licence
CC BY 4.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Lutreolina crassicaudata paranalis · MVZ:Mamm:MVZ:Mamm:166101

Smithsonian Open Access was 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 itLutreolina through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Desmarest 1804)