Anisaster

Anisaster

via iDigBio · CC BY · via iDigBio. 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
AgassiziaPBDB
Diet
deposit feeder, detritivorePBDB, for Spatangoida
Life habit
shallow infaunalPBDB, for Spatangoida
Motility
slow-movingPBDB, for Spatangoida
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Spatangoida

Time the record covers

At least 10 million years on record.

The record covers at least 37.71 Mya to 27.3 Mya. No occurrence read is dated outside 41.03 Mya to 18.5 Mya.

Eocene — about 6 of 14 occurrencesEoceneOligocene — about 8 of 14 occurrencesOligoceneMiocene — about 0 of 14 occurrencesMiocene42–41 Mya — about 0.5 occurrences41–40 Mya — about 1 occurrence40–39 Mya — about 1 occurrence39–38 Mya — about 1 occurrence38–38 Mya — about 1 occurrence34–34 Mya — about 0.1 occurrences34–33 Mya — about 0.4 occurrences33–32 Mya — about 0.4 occurrences32–31 Mya — about 0.4 occurrences31–31 Mya — about 0.4 occurrences31–30 Mya — about 0.4 occurrences30–29 Mya — about 0.4 occurrences29–28 Mya — about 0.4 occurrences28–27 Mya — about 0.4 occurrences27–27 Mya — about 0.8 occurrences27–26 Mya — about 0.8 occurrences26–25 Mya — about 0.8 occurrences25–24 Mya — about 0.8 occurrences24–23 Mya — about 0.8 occurrences23–23 Mya — about 0.5 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–18 Mya — about 0.0 occurrences37.71 Mya27.3 Mya41.5 Mya18 Mya

14 occurrences of Anisaster on record, most of them in the Oligocene. 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

14 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

8 formations

Castle Hayne — 34.64°N, 77.65°WCastle Hayne — 34.37°N, 77.86°WCastle Hayne — 34.23°N, 77.94°WSuwannee Limestone — 28.56°N, 82.39°WRiver Bend — 35.15°N, 77.14°WRiver Bend — 34.89°N, 77.23°WSantee Limestone — 33.33°N, 79.69°WBridgeboro Limestone — 30.78°N, 85.23°WMaadi — 29.00°N, 30.00°EAnahuac — 29.28°N, 95.73°WChickasawhay — 31.65°N, 88.53°W

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The named rock units Anisaster has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Anisaster and its relatives

Oligocene

Where Anisaster and its relatives were recorded in the Oligocene.

Found in the same rock

232 taxa

The Paleobiology Database records 14 sites for Anisaster, 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

8 references

Each of the 14 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. 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 Anisaster

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itAgassizia through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Pomel 1886)