Pollia

Pollia is a genus of sea snails, marine gastropod mollusks in the family Pisaniidae.

Pollia

Hectonichus · 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
PisaniidaePBDB
Diet
carnivorePBDB, for Neogastropoda
Life habit
epifaunalPBDB, for Neogastropoda
Motility
actively mobilePBDB, for Neogastropoda
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 61 million years on record.

The record covers at least 61.66 Mya to 129 ka. No occurrence read is dated outside 66 Mya to 11.7 ka.

Late Cretaceous — about 0 of 43 occurrencesPaleocene — about 6 of 43 occurrencesPaleoceneEocene — about 11 of 43 occurrencesEoceneOligocene — about 9 of 43 occurrencesOligoceneMiocene — about 7 of 43 occurrencesMiocenePliocene — about 3 of 43 occurrencesPleistocene — about 7 of 43 occurrences67–65 Mya — about 0.7 occurrences65–63 Mya — about 2 occurrences63–61 Mya — about 2 occurrences61–58 Mya — about 2 occurrences56–54 Mya — about 0.5 occurrences54–52 Mya — about 0.6 occurrences52–49 Mya — about 0.6 occurrences49–47 Mya — about 0.6 occurrences47–45 Mya — about 0.6 occurrences45–43 Mya — about 0.6 occurrences43–40 Mya — about 1 occurrence40–38 Mya — about 3 occurrences38–36 Mya — about 2 occurrences36–34 Mya — about 2 occurrences34–31 Mya — about 3 occurrences31–29 Mya — about 3 occurrences29–27 Mya — about 3 occurrences25–22 Mya — about 0.1 occurrences22–20 Mya — about 0.3 occurrences20–18 Mya — about 0.3 occurrences18–16 Mya — about 0.3 occurrences16–13 Mya — about 0.7 occurrences13–11 Mya — about 3 occurrences11–9.0 Mya — about 0.7 occurrences9.0–6.7 Mya — about 0.7 occurrences6.7–4.5 Mya — about 2 occurrences4.5–2.2 Mya — about 2 occurrences2.2–0 Mya — about 7 occurrences61.66 Mya129 ka67 Mya0 Mya

43 occurrences of Pollia on record, most of them in the Eocene. 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

43 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

Falun de Jeurs — 48.48°N, 2.23°ENgorora — 0.88°N, 35.80°EAgatdal — 70.60°N, 53.05°WAgatdal — 70.60°N, 53.10°WLondon Clay — 50.83°N, 0.78°WWoolwich and Reading — 51.52°N, 0.08°WFalun d'Auvers-Saint-Georges — 47.40°N, 4.45°EBarton Beds — 50.78°N, 1.73°WBarton Beds — 50.74°N, 1.69°WTalara — 5.13°S, 81.17°WNanggulan — 7.48°S, 110.05°EFalun de Pierrefitte — 48.50°N, 2.25°ERyukyu Limestone — 24.38°N, 124.22°ENaha — 26.21°N, 127.65°EBecton — 50.74°N, 1.69°WFalun de Morigny — 48.45°N, 2.20°EBundera Calcarenite — 21.89°S, 114.02°ETagpochau Limestone — 15.00°N, 145.63°ESondé — 8.00°S, 114.00°EQuimper — 48.00°N, 122.83°WSanta Lucía — 17.98°S, 65.60°W

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The named rock units Pollia 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.

Pollia and its relatives

Eocene

Where Pollia and its relatives were recorded in the Eocene.

Found in the same rock

877 taxa

The Paleobiology Database records 35 sites for Pollia, 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

21 references

Each of the 43 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. 9 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 Pollia

Credit
Hectonichus
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

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 itPisaniidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gray 1834)