Entoptychus

Entoptychus

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
EntoptychidaePBDB
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 6.2 million years on record.

The record covers at least 24.7 Mya to 18.5 Mya. No occurrence read is dated outside 29.5 Mya to 16.3 Mya.

Oligocene — about 20 of 40 occurrencesOligoceneMiocene — about 20 of 40 occurrencesMiocene30–29 Mya — about 1 occurrence29–29 Mya — about 1 occurrence29–28 Mya — about 1 occurrence28–28 Mya — about 1 occurrence28–27 Mya — about 1 occurrence27–27 Mya — about 2 occurrences27–26 Mya — about 2 occurrences26–26 Mya — about 2 occurrences26–25 Mya — about 2 occurrences25–25 Mya — about 2 occurrences25–24 Mya — about 1 occurrence24–24 Mya — about 1 occurrence24–23 Mya — about 1 occurrence23–23 Mya — about 2 occurrences23–22 Mya — about 2 occurrences22–22 Mya — about 2 occurrences22–21 Mya — about 2 occurrences21–21 Mya — about 2 occurrences21–21 Mya — about 2 occurrences21–20 Mya — about 2 occurrences20–20 Mya — about 2 occurrences20–19 Mya — about 2 occurrences19–19 Mya — about 2 occurrences19–18 Mya — about 0.9 occurrences18–18 Mya — about 0.4 occurrences18–17 Mya — about 0.4 occurrences17–17 Mya — about 0.4 occurrences17–16 Mya — about 0.4 occurrences24.7 Mya18.5 Mya30 Mya15.8 Mya

40 occurrences of Entoptychus 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

40 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

8 formations

John Day — 44.70°N, 119.63°WJohn Day — 44.90°N, 120.20°WJohn Day — 44.90°N, 121.30°WJohn Day — 44.83°N, 119.74°WJohn Day — 45.08°N, 119.87°WJohn Day — 44.79°N, 119.58°WJohn Day — 43.98°N, 120.25°WJohn Day — 44.72°N, 119.66°WRosebud — 43.30°N, 102.50°WPeterson Creek Beds — 45.00°N, 113.60°WHarrison — 42.80°N, 100.80°WSharps — 43.30°N, 102.50°WReunion Creek Beds — 42.88°N, 101.35°WWildcat Hills Beds — 41.70°N, 103.67°WCoffee Mill Butte Beds — 42.55°N, 103.35°W

Loading coastlines…

The named rock units Entoptychus 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.

Entoptychus and its relatives

Miocene

Where Entoptychus and its relatives were recorded in the Miocene.

Found in the same rock

199 taxa

The Paleobiology Database records 33 sites for Entoptychus, 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

13 references

Each of the 40 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. 1 further reference is 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 Entoptychus

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

Laser scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Entoptychus wheelerensis · UCMP:V:151251

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1878