Crepidula adunca

Crepidula adunca, common name the "hooked slippersnail" is a species of sea snail or "slipper snail", a marine gastropod mollusk in the family Calyptraeidae, the slipper snails and cup-and-saucer snails.

Crepidula adunca

Ed Bierman · CC BY 2.0 · 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
Also called
hooked slippersnailPBDB
Sits inside
CrepidulaPBDB
Diet
suspension feederPBDB, for Crepidula
Life habit
epifaunalPBDB, for Crepidula
Motility
facultatively mobile, attachedPBDB, for Crepidula
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 5.2 million years on record.

The record covers at least 5.333 Mya to 129 ka. No occurrence read is dated outside 11.63 Mya to 0 Mya.

Miocene — about 5 of 96 occurrencesMiocenePliocene — about 10 of 96 occurrencesPliocenePleistocene — about 81 of 96 occurrencesPleistoceneHolocene — about 0 of 96 occurrences12–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.7 Mya — about 0.1 occurrences9.7–9.3 Mya — about 0.1 occurrences9.3–8.9 Mya — about 0.1 occurrences8.9–8.5 Mya — about 0.1 occurrences8.5–8.1 Mya — about 0.1 occurrences8.1–7.7 Mya — about 0.1 occurrences7.7–7.3 Mya — about 0.1 occurrences7.3–6.9 Mya — about 0.7 occurrences6.9–6.5 Mya — about 0.8 occurrences6.5–6.1 Mya — about 0.8 occurrences6.1–5.7 Mya — about 0.8 occurrences5.7–5.3 Mya — about 0.9 occurrences5.3–4.9 Mya — about 2 occurrences4.9–4.4 Mya — about 2 occurrences4.4–4.0 Mya — about 2 occurrences4.0–3.6 Mya — about 2 occurrences3.6–3.2 Mya — about 1 occurrence3.2–2.8 Mya — about 1 occurrence2.8–2.4 Mya — about 3 occurrences2.4–2.0 Mya — about 5 occurrences2.0–1.6 Mya — about 4 occurrences1.6–1.2 Mya — about 3 occurrences1.2–809 ka Mya — about 3 occurrences809 ka–404 ka Mya — about 9 occurrences404 ka–0 Mya — about 54 occurrences5.333 Mya129 ka12.1 Mya0 Mya

96 occurrences of Crepidula adunca on record, most of them in the Pleistocene. 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

96 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

15 formations

Palos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.71°N, 118.27°WPalos Verdes Sand — 33.64°N, 117.89°WPalos Verdes Sand — 33.66°N, 117.94°WUnnamed — 33.24°N, 119.51°WLomita Marl — 33.75°N, 118.30°WLomita Marl — 33.74°N, 118.29°WTowsley — 34.36°N, 118.51°WCareaga Sandstone — 34.88°N, 120.51°WCareaga Sandstone — 34.90°N, 120.32°WCareaga Sandstone — 34.82°N, 120.45°WPancho Rico — 35.89°N, 121.05°WPancho Rico — 35.73°N, 120.81°WPancho Rico — 36.19°N, 120.86°WPancho Rico — 36.03°N, 120.80°WSan Pedro — 33.93°N, 117.95°WSan Pedro — 33.80°N, 118.16°WFernando — 34.05°N, 118.25°WSan Pedro Sand — 33.74°N, 118.28°WPico — 34.36°N, 118.56°WPico — 34.33°N, 118.72°WEtchegoin — 36.09°N, 120.40°WEtchegoin — 35.99°N, 120.26°WEmpire — 42.84°N, 124.56°WTimms Point Silt — 33.73°N, 118.28°WSanta Barbara — 34.40°N, 119.69°WQuaternary terrace — 33.76°N, 118.35°W

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The named rock units Crepidula adunca has been recovered from, largest first. Drawn where the rock is now, not where it formed. 40 occurrences have no formation on record, which is common for older literature.

Crepidula adunca and its relatives

Pleistocene

Where Crepidula adunca and its relatives were recorded in the Pleistocene.

Found in the same rock

968 taxa

The Paleobiology Database records 82 sites for Crepidula adunca, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

36 references

Each of the 96 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. 24 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 content1

Picture of Crepidula adunca

Credit
Ed Bierman
Licence
CC BY 2.0
Commercial use
the licence allows it

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

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 itCrepidula through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sowerby 1824