Pirenella

Pirenella is a genus of sea snails, marine gastropod mollusks in the family Potamididae.

Pirenella

H. Zell · CC BY-SA 3.0 · 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
Sits inside
PotamidinaePBDB
Diet
grazerPBDB, for Potamididae
Life habit
epifaunalPBDB, for Potamididae
Motility
actively mobilePBDB, for Potamididae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 83 million years on record.

The record covers at least 83.6 Mya to 129 ka. No occurrence read is dated outside 85.7 Mya to 11.7 ka.

Late Cretaceous — about 1 of 47 occurrencesLate CretaceousPaleocene — about 3 of 47 occurrencesPaleoceneEocene — about 10 of 47 occurrencesEoceneOligocene — about 0 of 47 occurrencesMiocene — about 27 of 47 occurrencesMiocenePliocene — about 3 of 47 occurrencesPleistocene — about 3 of 47 occurrences87–85 Mya — about 0.6 occurrences85–82 Mya — about 0.4 occurrences67–64 Mya — about 0.6 occurrences64–61 Mya — about 0.9 occurrences61–58 Mya — about 0.6 occurrences58–55 Mya — about 0.9 occurrences50–47 Mya — about 0.4 occurrences47–44 Mya — about 0.8 occurrences44–41 Mya — about 1 occurrence41–38 Mya — about 5 occurrences38–35 Mya — about 2 occurrences35–32 Mya — about 0.6 occurrences17–15 Mya — about 0.7 occurrences15–12 Mya — about 11 occurrences12–8.7 Mya — about 9 occurrences8.7–5.8 Mya — about 6 occurrences5.8–2.9 Mya — about 3 occurrences2.9–0 Mya — about 3 occurrences83.6 Mya129 ka87 Mya0 Mya

47 occurrences of Pirenella on record, most of them in the Miocene. 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

47 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

Cresnes — 49.22°N, 1.97°ECalcaire de Mons — 50.45°N, 3.93°EBabica Beds — 49.92°N, 21.90°EHochmoos — 47.61°N, 13.48°EBredasdorp — 34.53°S, 20.03°EAlexandria — 33.97°S, 25.62°ESables de Cresnes — 49.20°N, 2.02°EKorytnica Clays — 50.67°N, 20.52°E

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The named rock units Pirenella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 38 occurrences have no formation on record, which is common for older literature.

Pirenella and its relatives

Miocene

Where Pirenella and its relatives were recorded in the Miocene.

Found in the same rock

753 taxa

The Paleobiology Database records 28 sites for Pirenella, 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

16 references

Each of the 47 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. 4 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 Pirenella

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

Smithsonian Open Access was 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 itPotamidinae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1847