Proechimys

Proechimys is a genus of South American spiny rats of the family Echimyidae. All species of the genus are terrestrial. In the lowland Neotropical forests, Proechimys rodents are often the most abundant non-volant mammals. They are recognizable by reason of their elongated heads and long rostra, large and erect ears, narrow and long hind feet, and tails always shorter than head-and-body lengths. The dorsal pelage comprises a mixture of expanded, varyingly stiffened spines — hence the vernacular name of spiny rats — and soft hairs.

Proechimys

Marlysonjrc · Public Domain · 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
spiny ratPBDB
Sits inside
OctodontoideaPBDB
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 762 thousand years on record.

The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 3.6 Mya to 0 Mya.

Pliocene — about 0 of 15 occurrencesPliocenePleistocene — about 8 of 15 occurrencesPleistoceneHolocene — about 7 of 15 occurrences3.7–3.6 Mya — about 0.0 occurrences3.6–3.4 Mya — about 0.0 occurrences3.4–3.3 Mya — about 0.0 occurrences3.3–3.1 Mya — about 0.0 occurrences3.1–3.0 Mya — about 0.0 occurrences3.0–2.9 Mya — about 0.0 occurrences2.9–2.7 Mya — about 0.0 occurrences2.7–2.6 Mya — about 0.0 occurrences2.6–2.5 Mya — about 0.2 occurrences2.5–2.3 Mya — about 0.2 occurrences2.3–2.2 Mya — about 0.2 occurrences2.2–2.0 Mya — about 0.2 occurrences2.0–1.9 Mya — about 0.2 occurrences1.9–1.8 Mya — about 0.2 occurrences1.8–1.6 Mya — about 0.2 occurrences1.6–1.5 Mya — about 0.2 occurrences1.5–1.4 Mya — about 0.2 occurrences1.4–1.2 Mya — about 0.2 occurrences1.2–1.1 Mya — about 0.2 occurrences1.1–957 ka Mya — about 0.2 occurrences957 ka–820 ka Mya — about 0.2 occurrences820 ka–683 ka Mya — about 0.2 occurrences683 ka–547 ka Mya — about 0.2 occurrences547 ka–410 ka Mya — about 0.2 occurrences410 ka–273 ka Mya — about 0.2 occurrences273 ka–137 ka Mya — about 0.2 occurrences137 ka–0 Mya — about 11 occurrences774 ka11.7 ka4.1 Mya0 Mya

15 occurrences of Proechimys 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

15 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

1 formation

Mesa — 9.85°N, 63.33°W

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The named rock units Proechimys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 14 occurrences have no formation on record, which is common for older literature.

Proechimys and its relatives

Pleistocene

Where Proechimys and its relatives were recorded in the Pleistocene.

Found in the same rock

276 taxa

The Paleobiology Database records 9 sites for Proechimys, 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

9 references

Each of the 15 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 Proechimys

Credit
Marlysonjrc
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Proechimys 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 itOctodontoidea through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Allen 1899