Astralium

Astralium, common name star snails, is a genus of sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails and star snails.

Astralium

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
TurbininaePBDB
Diet
grazerPBDB, for Turbinidae
Life habit
epifaunalPBDB, for Turbinidae
Motility
actively mobilePBDB, for Turbinidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 236 million years on record.

The record covers at least 237 Mya to 129 ka. No occurrence read is dated outside 241.464 Mya to 11.7 ka.

Middle Triassic — about 2 of 65 occurrencesLate Triassic — about 2 of 65 occurrencesLate TriassicEarly Jurassic — about 0 of 65 occurrencesMiddle Jurassic — about 0 of 65 occurrencesLate Jurassic — about 0 of 65 occurrencesEarly Cretaceous — about 0 of 65 occurrencesLate Cretaceous — about 1 of 65 occurrencesLate CretaceousPaleocene — about 0 of 65 occurrencesEocene — about 1 of 65 occurrencesEoceneOligocene — about 2 of 65 occurrencesMiocene — about 23 of 65 occurrencesPliocene — about 19 of 65 occurrencesPleistocene — about 15 of 65 occurrences246–238 Mya — about 2 occurrences238–230 Mya — about 2 occurrences230–222 Mya — about 0.5 occurrences107–99 Mya — about 0.1 occurrences99–90 Mya — about 0.2 occurrences90–82 Mya — about 0.2 occurrences82–74 Mya — about 0.2 occurrences74–66 Mya — about 0.2 occurrences41–33 Mya — about 1 occurrence33–25 Mya — about 2 occurrences25–16 Mya — about 4 occurrences16–8.2 Mya — about 11 occurrences8.2–0 Mya — about 41 occurrences237 Mya129 ka246 Mya0 Mya

65 occurrences of Astralium 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

65 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

28 formations

Cercado — 19.46°N, 71.10°WCercado — 19.53°N, 71.27°WBowden — 17.88°N, 76.28°WTalparo — 10.67°N, 61.07°WBelmont — 32.33°N, 64.69°WGurabo — 18.73°N, 71.00°WGurabo — 19.53°N, 71.33°WGurabo — 19.30°N, 71.67°WDry Creek Sands — 34.89°S, 138.56°EAraya — 10.82°N, 64.18°WAraya — 10.62°N, 64.00°WMount Hope — 9.33°N, 79.90°WMare — 10.61°N, 63.52°WMare — 10.64°N, 64.11°WMarmolata — 46.46°N, 11.85°EChipola — 30.44°N, 85.19°WPallinup Siltstone — 35.02°S, 117.89°EBundera Calcarenite — 21.89°S, 114.02°EBermont — 26.68°N, 80.67°WUpper Kalibeng — 7.49°S, 110.00°ERembang — 7.49°S, 110.00°EFalun de Saucats — 44.66°N, 0.57°WMao — 19.67°N, 71.40°WQom — 31.52°N, 52.74°ECaloosahatchee — 26.80°N, 81.37°WSuwannee Limestone — 28.23°N, 82.18°WGrotto Beach — 24.03°N, 74.52°WTims Thicket/Kooallup Limestone — 32.65°S, 115.63°ETentokuji — 39.75°N, 140.41°E

Loading coastlines…

The named rock units Astralium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 further formations hold fewer occurrences each and are not listed. 18 occurrences have no formation on record, which is common for older literature.

Astralium and its relatives

Miocene

Where Astralium and its relatives were recorded in the Miocene.

Found in the same rock

2,140 taxa

The Paleobiology Database records 27 sites for Astralium, 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

32 references

Each of the 65 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. 20 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 Astralium

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

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itTurbininae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Link 1807)