Amaea (Acrilla) affinis

Searched as Acrilla affinis. The Paleobiology Database treats Amaea (Acrilla) affinis as the accepted name.

Acrilla affinis is an extinct species of sea snail, a marine gastropod mollusk in the family Epitoniidae, the wentletraps.

Amaea (Acrilla) affinis

Stichting Schepsel Schelp · CC BY 4.0 · 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
Epitonium (Acrilla)PBDB
Diet
carnivorePBDB, for Epitoniidae
Life habit
semi-infaunalPBDB, for Epitonium
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 48.07 Mya and 37.71 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 5 of 5 occurrencesEocene48–48 Mya — about 0.1 occurrences48–47 Mya — about 0.1 occurrences47–47 Mya — about 0.1 occurrences47–47 Mya — about 0.1 occurrences47–46 Mya — about 0.1 occurrences46–46 Mya — about 0.1 occurrences46–46 Mya — about 0.1 occurrences46–45 Mya — about 0.1 occurrences45–45 Mya — about 0.1 occurrences45–44 Mya — about 0.1 occurrences44–44 Mya — about 0.1 occurrences44–44 Mya — about 0.1 occurrences44–43 Mya — about 0.1 occurrences43–43 Mya — about 0.1 occurrences43–43 Mya — about 0.1 occurrences43–42 Mya — about 0.1 occurrences42–42 Mya — about 0.1 occurrences42–41 Mya — about 0.1 occurrences41–41 Mya — about 0.1 occurrences41–41 Mya — about 0.3 occurrences41–40 Mya — about 0.3 occurrences40–40 Mya — about 0.3 occurrences40–39 Mya — about 0.3 occurrences39–39 Mya — about 0.3 occurrences39–39 Mya — about 0.3 occurrences39–38 Mya — about 0.3 occurrences38–38 Mya — about 0.3 occurrences38–38 Mya — about 0.2 occurrences48.6 Mya37.2 Mya

5 occurrences of Amaea (Acrilla) affinis 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

5 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

Sables a Nummulites variolarius — 49.25°N, 2.50°ESelsey — 50.73°N, 0.78°WAmeki — 5.00°N, 7.50°E

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The named rock units Amaea (Acrilla) affinis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Amaea (Acrilla) affinis and its relatives

Eocene

Where Amaea (Acrilla) affinis and its relatives were recorded in the Eocene.

Found in the same rock

468 taxa

The Paleobiology Database records 3 sites for Amaea (Acrilla) affinis, 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

5 references

Each of the 5 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 Amaea (Acrilla) affinis

Source
GBIF
Credit
Stichting Schepsel Schelp
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Amaea (Acrilla) affinis was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

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 itEpitonium (Acrilla) through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Deshayes 1861)