Acmaea simplex

Acmaea simplex

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
AcmaeaPBDB
Diet
grazerPBDB, for Acmaeidae
Life habit
epifaunalPBDB, for Acmaeidae
Motility
facultatively mobile, attachedPBDB, for Acmaeidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 27 million years on record.

The record covers at least 61.66 Mya to 33.9 Mya. No occurrence read is dated outside 66 Mya to 27.3 Mya.

Late Cretaceous — about 0 of 9 occurrencesPaleocene — about 4 of 9 occurrencesPaleoceneEocene — about 2 of 9 occurrencesEoceneOligocene — about 3 of 9 occurrencesOligocene67–65 Mya — about 0.3 occurrences65–64 Mya — about 0.6 occurrences64–63 Mya — about 0.6 occurrences63–61 Mya — about 0.5 occurrences60–59 Mya — about 0.3 occurrences59–57 Mya — about 0.8 occurrences57–56 Mya — about 0.8 occurrences56–55 Mya — about 0.0 occurrences39–37 Mya — about 0.2 occurrences37–36 Mya — about 0.7 occurrences36–35 Mya — about 0.7 occurrences35–33 Mya — about 0.7 occurrences33–32 Mya — about 0.6 occurrences32–31 Mya — about 0.6 occurrences31–29 Mya — about 0.6 occurrences29–28 Mya — about 0.6 occurrences28–27 Mya — about 0.3 occurrences61.66 Mya33.9 Mya66.8 Mya26.5 Mya

9 occurrences of Acmaea simplex on record, most of them in the Paleocene. 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

9 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

4 formations

Czarnorzeki Beds — 49.77°N, 21.97°ECzarnorzeki Beds — 49.77°N, 21.93°ECalcaire de Mons — 50.45°N, 3.93°EQuimper — 48.00°N, 122.83°WLincoln Creek — 47.66°N, 122.96°W

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The named rock units Acmaea simplex has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Acmaea simplex and its relatives

Paleocene

Where Acmaea simplex and its relatives were recorded in the Paleocene.

Found in the same rock

436 taxa

The Paleobiology Database records 6 sites for Acmaea simplex, 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

7 references

Each of the 9 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Acmaea simplex

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

No 3D scan of Acmaea simplex 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.

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

Keep going

What may have been alongside itAcmaea through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dickerson 1917