Pholadidae

Pholadidae, known as piddocks or angelwings, are a family of bivalve molluscs similar to a clam.

Pholadidae

Erik Veldhuis; Modified by Tom Meijer · CC BY-SA 3.0 · 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
piddockPBDB
Sits inside
PholadoideaPBDB
Diet
suspension feederPBDB
Life habit
boringPBDB
Motility
stationaryPBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 170 million years on record.

The record covers at least 170.9 Mya to 11.7 ka. No occurrence read is dated outside 192.9 Mya to 0 Mya.

Early Jurassic — about 1 of 577 occurrencesEarly JurassicMiddle Jurassic — about 0 of 577 occurrencesLate Jurassic — about 3 of 577 occurrencesLate JurassicEarly Cretaceous — about 8 of 577 occurrencesEarly CretaceousLate Cretaceous — about 128 of 577 occurrencesLate CretaceousPaleocene — about 49 of 577 occurrencesEocene — about 39 of 577 occurrencesEoceneOligocene — about 22 of 577 occurrencesMiocene — about 90 of 577 occurrencesMiocenePliocene — about 52 of 577 occurrencesPleistocene — about 169 of 577 occurrences197–190 Mya — about 0.1 occurrences190–184 Mya — about 0.3 occurrences184–177 Mya — about 0.3 occurrences177–171 Mya — about 0.3 occurrences164–157 Mya — about 2 occurrences151–144 Mya — about 0.8 occurrences144–138 Mya — about 0.2 occurrences125–118 Mya — about 2 occurrences118–111 Mya — about 4 occurrences111–105 Mya — about 1 occurrence105–98 Mya — about 5 occurrences98–92 Mya — about 10 occurrences92–85 Mya — about 6 occurrences85–79 Mya — about 11 occurrences79–72 Mya — about 15 occurrences72–66 Mya — about 83 occurrences66–59 Mya — about 26 occurrences59–52 Mya — about 29 occurrences52–46 Mya — about 11 occurrences46–39 Mya — about 8 occurrences39–33 Mya — about 15 occurrences33–26 Mya — about 14 occurrences26–20 Mya — about 16 occurrences20–13 Mya — about 36 occurrences13–6.6 Mya — about 31 occurrences6.6–0 Mya — about 249 occurrences170.9 Mya11.7 ka197 Mya0 Mya

577 occurrences of Pholadidae 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

577 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

194 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°WPalos Verdes Sand — 33.66°N, 117.94°WSevern — 38.80°N, 77.00°WSevern — 38.89°N, 76.85°WSevern — 38.92°N, 76.85°WTuscahoma — 31.70°N, 84.85°WTuscahoma — 31.82°N, 87.37°WTuscahoma — 31.54°N, 87.52°WTuscahoma — 31.92°N, 87.52°WPrairie Bluff — 34.25°N, 88.97°WPrairie Bluff — 33.87°N, 89.00°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.04°N, 86.78°WPrairie Bluff — 31.95°N, 86.70°WPrairie Bluff — 32.00°N, 86.48°WPamlico — 38.55°N, 75.08°WPamlico — 32.69°N, 80.23°WPamlico — 32.83°N, 79.94°WPamlico — 34.78°N, 76.69°WPamlico — 35.14°N, 76.77°WPamlico — 35.50°N, 76.27°WWoodbine — 33.68°N, 96.45°WWoodbine — 33.66°N, 96.45°WWoodbine — 32.86°N, 97.06°WWoodbine — 32.97°N, 96.94°WWoodbine — 33.66°N, 96.91°WWoodbine — 33.67°N, 96.34°WRed Crag — 51.87°N, 1.29°ERed Crag — 52.05°N, 1.32°ERed Crag — 51.97°N, 1.35°ERed Crag — 51.85°N, 1.28°ERed Crag — 52.75°N, 1.53°EOwl Creek — 34.93°N, 88.87°WOwl Creek — 34.74°N, 88.90°WOwl Creek — 34.75°N, 88.93°WOwl Creek — 37.02°N, 89.85°WCareaga Sandstone — 34.84°N, 120.41°WCareaga Sandstone — 34.90°N, 120.32°WCareaga Sandstone — 34.74°N, 120.41°WCareaga Sandstone — 34.82°N, 120.45°WUnnamed — 33.24°N, 119.51°WMorne l'Enfer — 10.23°N, 61.63°WProvidence — 31.89°N, 85.70°WProvidence — 31.84°N, 85.22°WProvidence — 31.73°N, 85.11°WProvidence — 31.82°N, 85.00°WEugene — 44.05°N, 123.09°WEugene — 44.04°N, 123.04°WMichoud — 30.05°N, 89.96°WTalbot — 38.07°N, 76.36°WTalbot — 38.32°N, 76.48°WTalbot — 38.26°N, 76.42°WNanafalia — 31.82°N, 86.62°WNanafalia — 31.58°N, 85.77°WNanafalia — 31.72°N, 85.82°WLondon Clay — 50.89°N, 1.28°WMint Spring — 30.98°N, 88.73°WMint Spring — 32.17°N, 90.18°WMint Spring — 31.67°N, 88.65°WMint Spring — 31.66°N, 88.66°WNacatoch Sand — 32.59°N, 96.31°WNacatoch Sand — 32.10°N, 96.47°WNacatoch Sand — 33.14°N, 96.11°WBlack Creek — 35.77°N, 78.64°WBlack Creek — 35.46°N, 77.68°WBlack Creek — 35.67°N, 77.47°WWoolwich and Reading — 51.52°N, 0.08°WFruitland — 36.49°N, 108.49°WFruitland — 36.27°N, 108.26°WNew Orleans Barrier Trend — 30.05°N, 89.96°WIl'inskaya — 57.78°N, 158.58°E

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The named rock units Pholadidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 170 further formations hold fewer occurrences each and are not listed. 148 occurrences have no formation on record, which is common for older literature.

Pholadidae and its relatives

Pleistocene

Where Pholadidae and its relatives were recorded in the Pleistocene.

Found in the same rock

3,819 taxa

The Paleobiology Database records 368 sites for Pholadidae, 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

238 references

Each of the 577 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. 226 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 content2

Picture of Pholadidae

Credit
Erik Veldhuis; Modified by Tom Meijer
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
Peter Nox
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itPholadoidea through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamarck 1809