Diodora arnoldi

Diodora arnoldi is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

Diodora arnoldi

McLean, 1966 · CC0 · 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
neat-rib keyhole limpetPBDB
Sits inside
DiodoraPBDB
Diet
grazer, carnivorePBDB, for Diodora
Life habit
epifaunalPBDB, for Diodora
Motility
facultatively mobilePBDB, for Diodora
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 2.4 million years on record.

The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.

Pliocene — about 3 of 18 occurrencesPliocenePleistocene — about 15 of 18 occurrencesPleistoceneHolocene — about 0 of 18 occurrences3.7–3.6 Mya — about 0.1 occurrences3.6–3.4 Mya — about 0.4 occurrences3.4–3.3 Mya — about 0.4 occurrences3.3–3.1 Mya — about 0.4 occurrences3.1–3.0 Mya — about 0.4 occurrences3.0–2.9 Mya — about 0.4 occurrences2.9–2.7 Mya — about 0.4 occurrences2.7–2.6 Mya — about 0.4 occurrences2.6–2.5 Mya — about 0.2 occurrences2.5–2.3 Mya — about 0.2 occurrences2.3–2.2 Mya — about 0.2 occurrences2.2–2.0 Mya — about 0.2 occurrences2.0–1.9 Mya — about 0.2 occurrences1.9–1.8 Mya — about 0.2 occurrences1.8–1.6 Mya — about 0.2 occurrences1.6–1.5 Mya — about 0.2 occurrences1.5–1.4 Mya — about 0.2 occurrences1.4–1.2 Mya — about 0.2 occurrences1.2–1.1 Mya — about 0.2 occurrences1.1–957 ka Mya — about 0.2 occurrences957 ka–820 ka Mya — about 0.2 occurrences820 ka–683 ka Mya — about 0.5 occurrences683 ka–547 ka Mya — about 0.7 occurrences547 ka–410 ka Mya — about 0.7 occurrences410 ka–273 ka Mya — about 0.7 occurrences273 ka–137 ka Mya — about 0.7 occurrences137 ka–0 Mya — about 9 occurrences2.58 Mya129 ka4.1 Mya0 Mya

18 occurrences of Diodora arnoldi 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

18 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

6 formations

Palos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.71°N, 118.27°WPalos Verdes Sand — 33.80°N, 118.17°WFernando — 34.05°N, 118.25°WFernando — 34.05°N, 118.25°WQuaternary terrace — 33.75°N, 118.33°WLomita Marl — 33.75°N, 118.30°WPalos Verdes — 33.63°N, 117.90°WSan Pedro Sand — 33.74°N, 118.28°W

Loading coastlines…

The named rock units Diodora arnoldi has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Diodora arnoldi and its relatives

Pleistocene

Where Diodora arnoldi and its relatives were recorded in the Pleistocene.

Found in the same rock

889 taxa

The Paleobiology Database records 16 sites for Diodora arnoldi, 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 18 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 Diodora arnoldi

Credit
McLean, 1966
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Diodora arnoldi 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.

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 itDiodora through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. McLean 1966