Fissurellidae

Fissurellidae, commonly called keyhole limpets or slit limpets, is a taxonomic family of small to medium-sized limpet-like sea snails, marine gastropod molluscs in the clade Vetigastropoda.

Fissurellidae

Edwardtbabinski at English Wikipedia · CC BY 2.5 · 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
keyhole limpetPBDB
Sits inside
FissurelloideaPBDB
Diet
grazerPBDB
Life habit
epifaunalPBDB
Motility
facultatively mobilePBDB
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 276 million years on record.

The record covers at least 276.8 Mya to 11.7 ka. No occurrence read is dated outside 287.6 Mya to 0 Mya.

Permian — about 1 of 1222 occurrencesPermianEarly Triassic — about 0 of 1222 occurrencesMiddle Triassic — about 0 of 1222 occurrencesLate Triassic — about 6 of 1222 occurrencesLate TriassicEarly Jurassic — about 35 of 1222 occurrencesEarly JurassicMiddle Jurassic — about 4 of 1222 occurrencesLate Jurassic — about 5 of 1222 occurrencesEarly Cretaceous — about 24 of 1222 occurrencesEarly CretaceousLate Cretaceous — about 20 of 1222 occurrencesLate CretaceousPaleocene — about 61 of 1222 occurrencesEocene — about 132 of 1222 occurrencesOligocene — about 17 of 1222 occurrencesMiocene — about 138 of 1222 occurrencesPliocene — about 217 of 1222 occurrencesPleistocene — about 524 of 1222 occurrences293–284 Mya — about 0.4 occurrences284–274 Mya — about 0.6 occurrences244–235 Mya — about 3 occurrences235–225 Mya — about 3 occurrences205–196 Mya — about 5 occurrences196–186 Mya — about 24 occurrences186–176 Mya — about 6 occurrences176–166 Mya — about 2 occurrences166–156 Mya — about 4 occurrences156–147 Mya — about 2 occurrences147–137 Mya — about 1 occurrence137–127 Mya — about 5 occurrences127–117 Mya — about 9 occurrences117–108 Mya — about 5 occurrences108–98 Mya — about 7 occurrences98–88 Mya — about 5 occurrences88–78 Mya — about 3 occurrences78–68 Mya — about 7 occurrences68–59 Mya — about 49 occurrences59–49 Mya — about 27 occurrences49–39 Mya — about 82 occurrences39–29 Mya — about 46 occurrences29–20 Mya — about 35 occurrences20–9.8 Mya — about 85 occurrences9.8–0 Mya — about 807 occurrences276.8 Mya11.7 ka293 Mya0 Mya

1,222 occurrences of Fissurellidae 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

1,222 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

240 formations

Palos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WUnnamed — 33.24°N, 119.51°WUnnamed — 33.24°N, 119.55°WCook Mountain — 32.32°N, 89.03°WCook Mountain — 32.17°N, 88.83°WCook Mountain — 32.32°N, 89.16°WCook Mountain — 32.04°N, 88.73°WCook Mountain — 32.10°N, 88.86°WCook Mountain — 32.36°N, 92.98°WCook Mountain — 31.12°N, 95.90°WCook Mountain — 31.25°N, 95.72°WCook Mountain — 30.63°N, 96.55°WCook Mountain — 30.63°N, 96.54°WMare — 10.00°N, 64.00°WMare — 10.00°N, 71.00°WMare — 10.61°N, 63.52°WMare — 10.64°N, 64.11°WTimms Point Silt — 33.73°N, 118.28°WBowden — 17.88°N, 76.28°WSan Pedro Sand — 33.74°N, 118.28°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 26.96°N, 81.99°WCaloosahatchee — 27.77°N, 82.68°WCaloosahatchee — 26.80°N, 81.37°WDiscovery Point — 29.00°N, 118.27°WDiscovery Point — 29.00°N, 118.23°WDiscovery Point — 29.10°N, 118.25°WDiscovery Point — 28.88°N, 118.29°WDiscovery Point — 29.07°N, 118.24°WBermont — 26.89°N, 82.01°WBermont — 27.72°N, 82.43°WBermont — 26.68°N, 80.67°WPalos Verdes — 33.81°N, 118.29°WPalos Verdes — 33.63°N, 117.90°WCastle Hayne — 34.64°N, 77.65°WCastle Hayne — 34.44°N, 77.89°WCastle Hayne — 34.23°N, 77.94°WCastle Hayne — 34.66°N, 77.70°WYorktown — 35.51°N, 77.62°WYorktown — 37.10°N, 76.39°WYorktown — 37.27°N, 76.57°WYorktown — 37.23°N, 76.51°WYorktown — 37.06°N, 76.63°WYorktown — 37.23°N, 76.96°WYorktown — 37.15°N, 76.74°WQuaternary terrace — 33.75°N, 118.33°WQuaternary terrace — 33.76°N, 118.35°WLomita Marl — 33.75°N, 118.30°WLomita Marl — 33.74°N, 118.29°WGosport Sand — 31.54°N, 87.52°WGosport Sand — 32.04°N, 88.73°WGosport Sand — 31.55°N, 87.91°WHierlatz — 47.19°N, 17.87°EAgatdal — 70.60°N, 53.05°WAgatdal — 70.60°N, 53.10°WChipola — 30.57°N, 85.84°WChipola — 30.44°N, 85.19°WChipola — 30.43°N, 84.98°WPirabas — 0.80°S, 47.13°WPirabas — 0.48°S, 48.17°WPirabas — 1.05°S, 47.16°WPirabas — 0.60°S, 47.31°WPirabas — 2.58°S, 43.38°WPirabas — 1.66°S, 45.37°WCalcaire de Mons — 50.45°N, 3.93°ETalparo — 10.67°N, 61.07°WTalparo — 10.63°N, 61.28°WHuacllaco — 15.90°S, 74.17°WGrotto Beach — 24.03°N, 74.52°W

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The named rock units Fissurellidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 216 further formations hold fewer occurrences each and are not listed. 436 occurrences have no formation on record, which is common for older literature.

Fissurellidae and its relatives

Pleistocene

Where Fissurellidae and its relatives were recorded in the Pleistocene.

Found in the same rock

4,450 taxa

The Paleobiology Database records 541 sites for Fissurellidae, and this reads 240 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

336 references

Each of the 1,222 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. 324 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 Fissurellidae

Credit
Edwardtbabinski at English Wikipedia
Licence
CC BY 2.5
Commercial use
the licence allows it

No 3D scan of Fissurellidae 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 itFissurelloidea through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Fleming 1822