Gyraulus

Gyraulus is a genus of small, mostly air-breathing, freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.

Gyraulus

Sitnikova T, Peretolchina T (2018) Description of a new species Gyraulus (Pulmonata: Planorbidae) from the land therm… · CC BY 4.0 · 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
PlanorbidaePBDB
Life habit
epifaunalPBDB, for Gastropoda
Motility
actively mobilePBDB, for Gastropoda
Vision
limitedPBDB, for Gastropoda
Environment
freshwaterPBDB, for Planorbidae

Time the record covers

At least 165 million years on record.

The record covers at least 165.3 Mya to 11.7 ka. No occurrence read is dated outside 170.9 Mya to 0 Mya.

Middle Jurassic — about 3 of 141 occurrencesLate Jurassic — about 2 of 141 occurrencesLate JurassicEarly Cretaceous — about 0 of 141 occurrencesLate Cretaceous — about 1 of 141 occurrencesLate CretaceousPaleocene — about 1 of 141 occurrencesEocene — about 1 of 141 occurrencesEoceneOligocene — about 5 of 141 occurrencesMiocene — about 76 of 141 occurrencesMiocenePliocene — about 10 of 141 occurrencesPleistocene — about 39 of 141 occurrences174–169 Mya — about 0.5 occurrences169–163 Mya — about 3 occurrences163–157 Mya — about 0.4 occurrences157–151 Mya — about 0.5 occurrences151–145 Mya — about 1 occurrence145–139 Mya — about 0.1 occurrences87–81 Mya — about 0.2 occurrences81–76 Mya — about 0.5 occurrences76–70 Mya — about 0.3 occurrences70–64 Mya — about 0.2 occurrences64–58 Mya — about 0.6 occurrences58–52 Mya — about 1.0 occurrences52–46 Mya — about 0.2 occurrences35–29 Mya — about 3 occurrences29–23 Mya — about 2 occurrences23–17 Mya — about 14 occurrences17–12 Mya — about 52 occurrences12–5.8 Mya — about 9 occurrences5.8–0 Mya — about 53 occurrences165.3 Mya11.7 ka174 Mya0 Mya

141 occurrences of Gyraulus 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

141 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

31 formations

Kirchberg — 48.60°N, 10.72°EKirchberg — 48.47°N, 10.35°EKirchberg — 48.50°N, 10.52°EKirchberg — 48.62°N, 10.80°EKirchberg — 48.68°N, 10.82°EKirchberg — 48.57°N, 10.42°EOber Süßwassermolasse — 48.63°N, 11.80°ESajovolgyi — 47.97°N, 19.69°EBorgloon — 50.80°N, 5.33°EBorgloon — 51.00°N, 4.50°ERandeck Maar — 48.57°N, 9.53°EUpper Freshwater Molasse — 48.66°N, 10.23°EUpper Freshwater Molasse — 48.63°N, 11.80°EGrimmelfingen — 48.60°N, 10.72°EGrimmelfingen — 48.47°N, 10.35°EAlturas — 41.49°N, 120.65°WAlturas — 40.16°N, 120.27°WShuler — 32.71°N, 96.71°Wfacies à Congeria — 45.05°N, 7.93°EPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.74°N, 118.28°WWillwood — 44.30°N, 109.00°WYuanmou — 24.87°N, 100.94°EAfyon — 39.00°N, 31.00°ENeuwieder Becken 4 — 50.43°N, 7.47°ESappa — 39.80°N, 98.10°WSahaba — 26.16°N, 32.66°EVistula — 54.28°N, 19.48°ESkalica — 48.48°N, 16.65°EFeistring — 47.55°N, 15.25°EFort Thompson — 26.76°N, 81.44°WHepingxiang — 23.93°N, 101.43°ETuodian — 25.34°N, 100.90°ECórcoles — 40.47°N, 2.68°W

Loading coastlines…

The named rock units Gyraulus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 76 occurrences have no formation on record, which is common for older literature.

Gyraulus and its relatives

Miocene

Where Gyraulus and its relatives were recorded in the Miocene.

Found in the same rock

1,853 taxa

The Paleobiology Database records 97 sites for Gyraulus, 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

64 references

Each of the 141 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. 52 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 Gyraulus

Credit
Sitnikova T, Peretolchina T (2018) Description of a new species Gyraulus (Pulmonata: Planorbidae) from the land therm…
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Gyraulus was found in MorphoSource and Sketchfab.

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 itPlanorbidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Charpentier 1837)