Phasianella

Phasianella, common name the pheasant shells, is a genus of small sea snails with a calcareous operculum and a colorfully patterned shell, a marine gastropod mollusc in the family Phasianellidae.

Phasianella

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
PhasianellidaePBDB
Diet
grazerPBDB, for Trochoidea
Life habit
epifaunalPBDB, for Trochoidea
Motility
actively mobilePBDB, for Trochoidea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 199 million years on record.

The record covers at least 199.5 Mya to 11.7 ka. No occurrence read is dated outside 201.4 Mya to 0 Mya.

Late Triassic — about 0 of 48 occurrencesEarly Jurassic — about 6 of 48 occurrencesEarly JurassicMiddle Jurassic — about 1 of 48 occurrencesLate Jurassic — about 0 of 48 occurrencesEarly Cretaceous — about 2 of 48 occurrencesEarly CretaceousLate Cretaceous — about 0 of 48 occurrencesPaleocene — about 0 of 48 occurrencesEocene — about 3 of 48 occurrencesEoceneOligocene — about 0 of 48 occurrencesMiocene — about 16 of 48 occurrencesMiocenePliocene — about 1 of 48 occurrencesPleistocene — about 18 of 48 occurrences205–199 Mya — about 4 occurrences199–192 Mya — about 1.0 occurrences192–185 Mya — about 0.8 occurrences185–178 Mya — about 0.1 occurrences171–164 Mya — about 1 occurrence116–110 Mya — about 0.6 occurrences110–103 Mya — about 1 occurrence103–96 Mya — about 0.3 occurrences55–48 Mya — about 0.0 occurrences48–41 Mya — about 2 occurrences41–34 Mya — about 1 occurrence27–21 Mya — about 0.4 occurrences21–14 Mya — about 4 occurrences14–6.8 Mya — about 10 occurrences6.8–0 Mya — about 22 occurrences199.5 Mya11.7 ka205 Mya0 Mya

48 occurrences of Phasianella on record, most of them in the Pleistocene. 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

48 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

Tims Thicket/Kooallup Limestone — 32.65°S, 115.63°ECercado — 19.47°N, 71.08°WPoint Allen — 36.00°S, 137.17°EDry Creek Sands — 34.75°S, 138.68°EDry Creek Sands — 34.89°S, 138.56°EKef El Haroun — 33.58°N, 7.65°WSables a Nummulites variolarius — 49.25°N, 2.50°ECalcaire de Caen — 48.97°N, 0.13°WEntre Rios — 33.72°S, 59.25°WNorwest Bend — 34.75°S, 139.55°EPoivre — 20.83°S, 115.42°ELower Menkrawit — 1.50°N, 116.50°EQuilon Limestone — 8.87°N, 76.59°EMount Hope — 9.33°N, 79.90°WTakamaka Limestone — 9.42°S, 46.45°EAldabra Limestone — 9.42°S, 46.45°ENakasi — 18.03°S, 178.52°EChasra — 23.09°N, 69.05°EMuddy Creek — 37.73°S, 142.02°EBayirkoy — 40.30°N, 29.99°E

Loading coastlines…

The named rock units Phasianella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 23 occurrences have no formation on record, which is common for older literature.

Phasianella and its relatives

Pleistocene

Where Phasianella and its relatives were recorded in the Pleistocene.

Found in the same rock

1,471 taxa

The Paleobiology Database records 24 sites for Phasianella, 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

28 references

Each of the 48 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. 16 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 Phasianella

Credit
Hectonichus
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Phasianella was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itPhasianellidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamarck 1804