Operculina

Operculina

Charles Bevalet · Public Domain · via Wikidata/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
Sits inside
NummulitidaePBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
semi-infaunalPBDB, for Foraminifera
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At least 119 million years on record.

The record covers at least 119.57 Mya to 11.7 ka. No occurrence read is dated outside 121.4 Mya to 0 Mya.

Early Cretaceous — about 2 of 365 occurrencesEarly CretaceousLate Cretaceous — about 0 of 365 occurrencesPaleocene — about 43 of 365 occurrencesEocene — about 62 of 365 occurrencesEoceneOligocene — about 114 of 365 occurrencesOligoceneMiocene — about 92 of 365 occurrencesMiocenePliocene — about 12 of 365 occurrencesPleistocene — about 37 of 365 occurrences124–120 Mya — about 2 occurrences120–116 Mya — about 0.1 occurrences66–62 Mya — about 0.1 occurrences62–58 Mya — about 22 occurrences58–54 Mya — about 29 occurrences54–50 Mya — about 14 occurrences50–45 Mya — about 10 occurrences45–41 Mya — about 8 occurrences41–37 Mya — about 11 occurrences37–33 Mya — about 17 occurrences33–29 Mya — about 34 occurrences29–25 Mya — about 48 occurrences25–21 Mya — about 56 occurrences21–17 Mya — about 21 occurrences17–12 Mya — about 21 occurrences12–8.3 Mya — about 8 occurrences8.3–4.1 Mya — about 11 occurrences4.1–0 Mya — about 50 occurrences119.57 Mya11.7 ka124 Mya0 Mya

365 occurrences of Operculina on record, most of them in the Oligocene. 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

365 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

74 formations

Qom Formation — 33.51°N, 51.99°EQom Formation — 34.51°N, 50.95°ESinjar — 35.35°N, 45.42°ESinjar — 35.38°N, 45.49°ESinjar — 35.50°N, 45.33°EEl Bosque — 37.90°N, 1.57°WGuitar Formation — 9.12°N, 92.80°ESylhet Formation — 25.26°N, 91.72°EMolare — 44.37°N, 8.20°EMolare — 44.50°N, 8.48°ELakadong — 25.16°N, 92.39°ECalcareniti di Castelgomberto — 45.48°N, 11.58°ELower Coralline Limestone — 35.92°N, 14.42°ENummulitic Limestone — 43.96°N, 6.69°ENummulitic Limestone — 43.38°N, 6.87°EZongpu — 32.00°N, 90.00°EZongpu — 28.29°N, 88.59°EGhibirti — 11.03°N, 51.03°EQom — 33.78°N, 51.73°EQom — 37.34°N, 44.94°EMarne di Priabona — 45.52°N, 11.54°EShihmen — 23.91°N, 121.05°EEl Fuqaha — 27.62°N, 36.20°ESlonta — 32.60°N, 21.72°EUm ad Dahiv — 29.67°N, 17.33°ELockhart Limestone — 32.43°N, 70.50°EPatala — 32.65°N, 71.82°EGianti — 9.50°N, 50.82°EChatti Mudstone — 25.29°N, 62.13°EQuilon Limestone — 8.97°N, 76.63°ERasov — 48.80°N, 17.73°E

Loading coastlines…

The named rock units Operculina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 50 further formations hold fewer occurrences each and are not listed. 146 occurrences have no formation on record, which is common for older literature.

Operculina and its relatives

Oligocene

Where Operculina and its relatives were recorded in the Oligocene.

Found in the same rock

823 taxa

The Paleobiology Database records 295 sites for Operculina, and this reads 240 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

98 references

Each of the 365 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. 86 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 Operculina

Credit
Charles Bevalet
Licence
Public Domain
Commercial use
the licence allows it

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 itNummulitidae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.