Acrilla (Ferminoscala) dickersoni

Acrilla dickersoni (Durham, 1937), a relative of Acrilla (Ferminoscala) dickersoni — not Acrilla (Ferminoscala) dickersoni itself

Not Acrilla (Ferminoscala) dickersoni. This is Acrilla dickersoni (Durham, 1937), a relative — both are Epitoniidae.

Hickman, Carole · CC0 · via GBIF. 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
ScalinaPBDB
Diet
carnivorePBDB, for Epitoniidae
Life habit
low-level epifaunalPBDB, for Epitoniidae
Motility
slow-movingPBDB, for Epitoniidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 37.71 Mya and 27.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 11 of 12 occurrencesEoceneOligocene — about 1 of 12 occurrencesOligocene38–37 Mya — about 0.8 occurrences37–37 Mya — about 1 occurrence37–37 Mya — about 1 occurrence37–36 Mya — about 1 occurrence36–36 Mya — about 1 occurrence36–36 Mya — about 1 occurrence36–35 Mya — about 1 occurrence35–35 Mya — about 1 occurrence35–34 Mya — about 1 occurrence34–34 Mya — about 1 occurrence34–34 Mya — about 0.4 occurrences34–33 Mya — about 0.1 occurrences33–33 Mya — about 0.1 occurrences33–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–31 Mya — about 0.1 occurrences31–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–29 Mya — about 0.1 occurrences29–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–28 Mya — about 0.1 occurrences28–28 Mya — about 0.1 occurrences28–27 Mya — about 0.0 occurrences38.2 Mya26.8 Mya

12 occurrences of Acrilla (Ferminoscala) dickersoni on record, most of them in the Eocene. 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

12 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

3 formations

Eugene — 44.05°N, 123.09°WEugene — 44.04°N, 123.04°WLincoln Creek — 47.66°N, 122.96°WSan Emigdio — 35.06°N, 119.18°W

Loading coastlines…

The named rock units Acrilla (Ferminoscala) dickersoni 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.

Acrilla (Ferminoscala) dickersoni and its relatives

Eocene

Where Acrilla (Ferminoscala) dickersoni and its relatives were recorded in the Eocene.

Found in the same rock

150 taxa

The Paleobiology Database records 12 sites for Acrilla (Ferminoscala) dickersoni, 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

3 references

Each of the 12 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 Acrilla dickersoni (Durham, 1937)

Source
GBIF
Credit
Hickman, Carole
Licence
CC0
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 itScalina through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Durham 1937)