Heliscomys

Heliscomys

via iDigBio · via iDigBio. 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
HeliscomyidaePBDB
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 20 million years on record.

The record covers at least 37 Mya to 16.3 Mya. No occurrence read is dated outside 39.7 Mya to 12.5 Mya.

Eocene — about 19 of 49 occurrencesEoceneOligocene — about 26 of 49 occurrencesOligoceneMiocene — about 4 of 49 occurrencesMiocene40–39 Mya — about 0.4 occurrences39–38 Mya — about 1 occurrence38–37 Mya — about 1 occurrence37–36 Mya — about 3 occurrences36–36 Mya — about 5 occurrences36–35 Mya — about 5 occurrences35–34 Mya — about 5 occurrences34–33 Mya — about 7 occurrences33–32 Mya — about 7 occurrences32–31 Mya — about 2 occurrences31–30 Mya — about 2 occurrences30–29 Mya — about 1 occurrence29–28 Mya — about 0.6 occurrences28–27 Mya — about 0.6 occurrences27–26 Mya — about 0.8 occurrences26–25 Mya — about 0.8 occurrences25–24 Mya — about 0.6 occurrences24–23 Mya — about 0.4 occurrences23–22 Mya — about 0.2 occurrences22–21 Mya — about 0.2 occurrences21–20 Mya — about 0.2 occurrences20–19 Mya — about 0.2 occurrences19–19 Mya — about 0.2 occurrences19–18 Mya — about 0.8 occurrences18–17 Mya — about 0.9 occurrences17–16 Mya — about 0.5 occurrences16–15 Mya — about 0.2 occurrences15–14 Mya — about 0.2 occurrences14–13 Mya — about 0.2 occurrences13–12 Mya — about 0.1 occurrences37 Mya16.3 Mya40.2 Mya12 Mya

49 occurrences of Heliscomys on record, most of them in the Oligocene. 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

49 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

12 formations

Brule — 40.80°N, 103.10°WBrule — 42.40°N, 103.80°WBrule — 42.80°N, 103.10°WBrule — 43.20°N, 103.20°WChadron — 42.80°N, 103.40°WChadron — 42.40°N, 103.80°WChadron — 45.47°N, 112.62°WChadron — 46.10°N, 103.30°WChadron — 42.75°N, 103.65°WCypress Hills — 50.00°N, 107.90°WCypress Hills — 49.57°N, 109.88°WCypress Hills — 49.70°N, 109.00°WCypress Hills — 49.60°N, 109.00°WCypress Hills — 49.80°N, 109.00°WSespe — 34.30°N, 119.00°WSespe — 33.73°N, 117.72°WSespe — 33.59°N, 117.61°WWhite River — 43.20°N, 107.10°WBarstow — 34.80°N, 117.00°WRenova — 45.90°N, 112.25°WPomerado — 32.85°N, 117.03°WSage Creek — 45.00°N, 112.80°WCook Ranch — 45.00°N, 112.80°WPaha Sapa Limestone — 43.90°N, 102.40°WParachucla — 30.20°N, 82.80°W

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The named rock units Heliscomys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Heliscomys and its relatives

Oligocene

Where Heliscomys and its relatives were recorded in the Oligocene.

Found in the same rock

621 taxa

The Paleobiology Database records 42 sites for Heliscomys, 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

30 references

Each of the 49 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. 18 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 Heliscomys

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itHeliscomyidae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1873