Leptarctus

Leptarctus

President and Fellows of Harvard College · CC BY-NC 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
LeptarctinaePBDB
Diet
omnivorePBDB
Life habit
scansorialPBDB, for Mustelidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 6.9 million years on record.

The record covers at least 16.3 Mya to 9.4 Mya. No occurrence read is dated outside 23.04 Mya to 4.7 Mya.

Oligocene — about 0 of 51 occurrencesMiocene — about 50 of 51 occurrencesMiocenePliocene — about 1 of 51 occurrences24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–18 Mya — about 0.4 occurrences18–18 Mya — about 2 occurrences18–17 Mya — about 2 occurrences17–16 Mya — about 2 occurrences16–16 Mya — about 3 occurrences16–15 Mya — about 4 occurrences15–15 Mya — about 4 occurrences15–14 Mya — about 4 occurrences14–13 Mya — about 4 occurrences13–13 Mya — about 4 occurrences13–12 Mya — about 3 occurrences12–11 Mya — about 3 occurrences11–11 Mya — about 3 occurrences11–10 Mya — about 3 occurrences10–9.4 Mya — about 3 occurrences9.4–8.7 Mya — about 1.0 occurrences8.7–8.1 Mya — about 1.0 occurrences8.1–7.4 Mya — about 1.0 occurrences7.4–6.8 Mya — about 1.0 occurrences6.8–6.1 Mya — about 1.0 occurrences6.1–5.5 Mya — about 1.0 occurrences5.5–4.8 Mya — about 0.9 occurrences4.8–4.2 Mya — about 0.2 occurrences16.3 Mya9.4 Mya23.5 Mya4.2 Mya

51 occurrences of Leptarctus on record, most of them in the Miocene. 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

51 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

19 formations

Valentine — 42.49°N, 98.11°WValentine — 42.70°N, 100.00°WValentine — 40.02°N, 98.53°WValentine — 42.78°N, 100.03°WValentine — 42.80°N, 100.80°WValentine — 42.60°N, 98.00°WValentine — 43.30°N, 100.65°WAsh Hollow — 42.80°N, 100.80°WAsh Hollow — 42.68°N, 102.68°WAsh Hollow — 42.70°N, 100.00°WAsh Hollow — 42.30°N, 98.00°WOgallala — 39.80°N, 99.40°WOgallala — 40.05°N, 100.90°WOgallala — 39.67°N, 100.85°WOgallala — 39.95°N, 99.53°WMascall — 44.50°N, 119.30°WMascall — 44.52°N, 119.71°WMascall — 44.90°N, 120.20°WOlcott — 42.40°N, 103.80°WOlcott — 42.19°N, 103.73°WAlachua — 29.55°N, 82.52°WAlachua — 29.70°N, 82.60°WArikaree — 43.20°N, 108.20°WGreen Valley — 37.81°N, 121.91°WSnake Creek — 42.40°N, 103.80°WPawnee Creek Beds — 40.80°N, 103.10°WFort Randall — 43.10°N, 98.30°WMatatlán — 16.92°N, 96.38°WMadison Valley — 45.93°N, 111.29°WSixmile Creek — 46.00°N, 112.00°WPunchbowl — 34.80°N, 117.00°WCrowder — 34.80°N, 117.00°WXianshuihe — 43.65°N, 112.66°EEllensburg — 46.46°N, 120.64°WRunningwater — 42.80°N, 103.10°W

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The named rock units Leptarctus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Leptarctus and its relatives

Miocene

Where Leptarctus and its relatives were recorded in the Miocene.

Found in the same rock

749 taxa

The Paleobiology Database records 49 sites for Leptarctus, 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

34 references

Each of the 51 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. 22 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 content2

Picture of Leptarctus

Source
GBIF
Credit
President and Fellows of Harvard College
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Leptarctus wortmani · UCMP:V:315187

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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

Keep going

What may have been alongside itLeptarctinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Leidy 1856