Arca

Searched as Navicula. The Paleobiology Database treats Arca as the accepted name.

Arca

via iDigBio · via iDigBio. 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
ArcinaePBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
stationary, attachedPBDB
Vision
limitedPBDB, for Arcidae
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Arcidae

Time the record covers

At least 264 million years on record.

The record covers at least 264.28 Mya to 11.7 ka. No occurrence read is dated outside 266.9 Mya to 0 Mya.

Permian — about 4 of 1035 occurrencesEarly Triassic — about 0 of 1035 occurrencesMiddle Triassic — about 10 of 1035 occurrencesLate Triassic — about 14 of 1035 occurrencesLate TriassicEarly Jurassic — about 6 of 1035 occurrencesEarly JurassicMiddle Jurassic — about 2 of 1035 occurrencesLate Jurassic — about 21 of 1035 occurrencesEarly Cretaceous — about 106 of 1035 occurrencesEarly CretaceousLate Cretaceous — about 136 of 1035 occurrencesLate CretaceousPaleocene — about 27 of 1035 occurrencesEocene — about 82 of 1035 occurrencesOligocene — about 28 of 1035 occurrencesMiocene — about 220 of 1035 occurrencesPliocene — about 100 of 1035 occurrencesPleistocene — about 273 of 1035 occurrences272–263 Mya — about 3 occurrences263–254 Mya — about 1 occurrence254–245 Mya — about 0.8 occurrences245–236 Mya — about 10 occurrences236–227 Mya — about 3 occurrences227–218 Mya — about 0.4 occurrences218–209 Mya — about 0.4 occurrences209–200 Mya — about 11 occurrences200–191 Mya — about 1 occurrence191–181 Mya — about 2 occurrences181–172 Mya — about 0.4 occurrences172–163 Mya — about 2 occurrences163–154 Mya — about 6 occurrences154–145 Mya — about 15 occurrences145–136 Mya — about 4 occurrences136–127 Mya — about 35 occurrences127–118 Mya — about 22 occurrences118–109 Mya — about 22 occurrences109–100 Mya — about 24 occurrences100–91 Mya — about 8 occurrences91–82 Mya — about 10 occurrences82–73 Mya — about 31 occurrences73–64 Mya — about 97 occurrences64–54 Mya — about 20 occurrences54–45 Mya — about 19 occurrences45–36 Mya — about 48 occurrences36–27 Mya — about 28 occurrences27–18 Mya — about 60 occurrences18–9.1 Mya — about 113 occurrences9.1–0 Mya — about 436 occurrences264.28 Mya11.7 ka272 Mya0 Mya

1,035 occurrences of Arca 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

1,035 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

243 formations

Latah — 47.56°N, 117.22°WPrairie Bluff — 33.89°N, 88.96°WPrairie Bluff — 33.79°N, 88.97°WPrairie Bluff — 33.79°N, 88.91°WPrairie Bluff — 33.46°N, 88.79°WPrairie Bluff — 33.03°N, 88.56°WPrairie Bluff — 32.67°N, 88.29°WPrairie Bluff — 32.74°N, 88.36°WPrairie Bluff — 32.70°N, 88.17°WPrairie Bluff — 32.61°N, 88.18°WPrairie Bluff — 32.43°N, 88.04°WPrairie Bluff — 32.39°N, 87.92°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.13°N, 87.40°WPrairie Bluff — 32.07°N, 87.33°WPrairie Bluff — 32.05°N, 86.99°WPrairie Bluff — 31.97°N, 86.72°WPrairie Bluff — 32.00°N, 86.48°WPrairie Bluff — 31.98°N, 86.00°WPrairie Bluff — 32.05°N, 86.78°WBlack Creek — 35.77°N, 78.64°WBlack Creek — 34.68°N, 78.23°WBlack Creek — 34.58°N, 78.27°WBlack Creek — 35.23°N, 77.79°WBlack Creek — 35.22°N, 77.68°WCaloosahatchee — 25.75°N, 81.94°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 27.77°N, 82.68°WCaloosahatchee — 26.80°N, 81.37°WCaloosahatchee — 26.75°N, 81.51°WEscondido — 29.59°N, 98.07°WEscondido — 29.25°N, 99.24°WEscondido — 29.05°N, 100.11°WEscondido — 28.96°N, 100.22°WEscondido — 28.87°N, 100.27°WEscondido — 28.71°N, 100.50°WEscondido — 28.66°N, 100.44°WCastle Hayne — 34.44°N, 77.89°WCastle Hayne — 34.23°N, 77.94°WCastle Hayne — 34.66°N, 77.70°WCastle Hayne — 35.01°N, 77.57°WCastle Hayne — 34.36°N, 77.82°WCassian — 46.55°N, 11.93°ECassian — 46.54°N, 11.62°ECassian — 46.57°N, 11.94°ECassian — 46.51°N, 11.76°ECook Mountain — 31.09°N, 95.95°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 30.63°N, 96.55°WCook Mountain — 30.64°N, 96.52°WCook Mountain — 30.07°N, 97.08°WCook Mountain — 29.99°N, 97.09°WCorsicana Marl — 31.74°N, 96.61°WCorsicana Marl — 29.83°N, 97.84°WCorsicana Marl — 29.60°N, 98.03°WCorsicana Marl — 29.63°N, 98.54°WCorsicana Marl — 29.59°N, 98.08°WCorsicana Marl — 31.30°N, 96.90°WProvidence — 31.87°N, 86.08°WProvidence — 31.92°N, 85.35°WProvidence — 31.84°N, 85.22°WProvidence — 31.95°N, 85.68°WProvidence — 31.76°N, 85.13°WProvidence — 31.73°N, 85.11°WProvidence — 31.89°N, 85.21°WUpper Bhuban — 23.72°N, 92.72°EUpper Bhuban — 22.88°N, 92.73°EUpper Bhuban — 23.00°N, 93.00°EImperial — 33.41°N, 116.06°WChipola — 30.44°N, 85.19°WChipola — 30.57°N, 85.84°WChipola — 30.43°N, 84.98°WTamiami — 26.72°N, 81.61°WTamiami — 25.67°N, 80.31°WTamiami — 26.01°N, 81.13°WTamiami — 26.73°N, 81.52°WPeedee — 33.89°N, 79.41°WPeedee — 35.77°N, 78.64°WPeedee — 34.48°N, 78.41°WAguja — 29.83°N, 103.25°WCercado — 19.47°N, 71.08°WCercado — 19.57°N, 71.25°WCercado — 19.53°N, 71.27°WGurabo — 19.53°N, 71.20°WGurabo — 18.73°N, 71.00°WGurabo — 19.30°N, 70.50°WGurabo — 19.53°N, 71.33°WGurabo — 19.30°N, 71.67°WVuache — 46.83°N, 6.52°EVincentown — 39.97°N, 74.68°WVincentown — 39.76°N, 75.11°WVincentown — 40.07°N, 74.53°WVincentown — 39.94°N, 74.75°WMount Laurel Sand — 39.55°N, 75.65°WGrès verts helvétiques — 46.09°N, 6.76°EGrès verts helvétiques — 46.04°N, 6.62°EGrès verts helvétiques — 45.98°N, 6.78°EBowden — 17.88°N, 76.28°WZorritos — 3.67°S, 80.65°WZorritos — 3.80°S, 80.50°W

Loading coastlines…

The named rock units Arca has been recovered from, largest first. Drawn where the rock is now, not where it formed. 219 further formations hold fewer occurrences each and are not listed. 457 occurrences have no formation on record, which is common for older literature.

Arca and its relatives

Pleistocene

Where Arca and its relatives were recorded in the Pleistocene.

Found in the same rock

3,585 taxa

The Paleobiology Database records 512 sites for Arca, 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

338 references

Each of the 1,035 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. 326 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 Arca

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

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

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

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itArcinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Blainville 1825)