Astraea

Astraea is a genus of medium to large sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails.

Astraea

GrahamBould · Public Domain · 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
TurbinidaePBDB
Diet
grazerPBDB, for Turbinidae
Life habit
epifaunalPBDB, for Turbinidae
Motility
actively mobilePBDB, for Turbinidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 55 million years on record.

The record covers at least 56 Mya to 11.7 ka. No occurrence read is dated outside 61.66 Mya to 0 Mya.

Paleocene — about 1 of 60 occurrencesPaleoceneEocene — about 5 of 60 occurrencesEoceneOligocene — about 5 of 60 occurrencesOligoceneMiocene — about 20 of 60 occurrencesMiocenePliocene — about 10 of 60 occurrencesPleistocene — about 18 of 60 occurrences63–61 Mya — about 0.2 occurrences61–59 Mya — about 0.4 occurrences59–57 Mya — about 0.4 occurrences57–55 Mya — about 0.1 occurrences48–46 Mya — about 0.4 occurrences46–44 Mya — about 0.4 occurrences44–42 Mya — about 0.4 occurrences42–40 Mya — about 0.4 occurrences40–38 Mya — about 0.4 occurrences38–36 Mya — about 2 occurrences36–34 Mya — about 1 occurrence34–31 Mya — about 0.3 occurrences31–29 Mya — about 0.3 occurrences29–27 Mya — about 0.4 occurrences27–25 Mya — about 2 occurrences25–23 Mya — about 2 occurrences23–21 Mya — about 0.7 occurrences21–19 Mya — about 2 occurrences19–17 Mya — about 2 occurrences17–15 Mya — about 4 occurrences15–13 Mya — about 4 occurrences13–10 Mya — about 1 occurrence10–8.4 Mya — about 0.7 occurrences8.4–6.3 Mya — about 2 occurrences6.3–4.2 Mya — about 4 occurrences4.2–2.1 Mya — about 9 occurrences2.1–0 Mya — about 18 occurrences56 Mya11.7 ka63 Mya0 Mya

60 occurrences of Astraea 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

60 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

Grotto Beach — 24.03°N, 74.52°WAstoria — 44.68°N, 124.08°WAstoria — 44.65°N, 124.06°WInglis Limestone — 29.03°N, 82.67°WInglis Limestone — 29.02°N, 82.65°WPoint Allen — 36.00°S, 137.17°EOtekaike Limestone — 44.77°S, 170.55°EOtekaike Limestone — 45.79°S, 170.51°EMare — 10.61°N, 63.52°WMare — 10.64°N, 64.11°WTermofourà — 45.05°N, 7.80°EBaldissero — 45.03°N, 7.76°EBaldissero — 45.03°N, 7.75°EChipola — 30.43°N, 84.98°WPlaya Grande — 10.00°N, 71.00°WRincon — 34.04°N, 120.04°WChatti Mudstone — 25.25°N, 62.25°EPirabas — 0.80°S, 47.13°WKauru — 45.06°S, 170.73°EBelmont — 32.33°N, 64.69°WMerced — 43.39°N, 124.28°WGlen Aire Clay — 38.83°S, 143.48°EJan Juc — 38.32°S, 144.32°EFyansford — 38.23°S, 145.02°ESan Andres — 12.53°N, 81.70°WMoin — 9.99°N, 83.07°WFalmouth — 18.47°N, 77.45°WCurchia — 44.76°N, 22.47°EVejle Fjord — 56.00°N, 9.25°E

Loading coastlines…

The named rock units Astraea 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. 21 occurrences have no formation on record, which is common for older literature.

Astraea and its relatives

Miocene

Where Astraea and its relatives were recorded in the Miocene.

Found in the same rock

1,474 taxa

The Paleobiology Database records 26 sites for Astraea, 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

39 references

Each of the 60 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. 27 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 content4

Picture of Astraea

Credit
GrahamBould
Licence
Public Domain
Commercial use
the licence allows it

3D scan

Licence
CC0 — this site’s default, not the record’s
Commercial use
the licence allows it
Specimen
Astraea heliotropium

Photogrammetry

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Astraea caelata · UF:Invertebrate Zoology:196863-Mollusca

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 itTurbinidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Röding 1798