Arca (Arca)

Arca (Arca)

Susanne Spindler · CC BY-NC 4.0 · via GBIF. 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
ArcaPBDB
Diet
suspension feederPBDB, for Arca
Life habit
epifaunalPBDB, for Arca
Motility
stationary, attachedPBDB, for Arca
Vision
limitedPBDB, for Arcidae
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Arcidae

Time the record covers

At least 144 million years on record.

The record covers at least 145.06 Mya to 774 ka. No occurrence read is dated outside 149.2 Mya to 0 Mya.

Late Jurassic — about 4 of 79 occurrencesEarly Cretaceous — about 0 of 79 occurrencesLate Cretaceous — about 0 of 79 occurrencesPaleocene — about 1 of 79 occurrencesEocene — about 12 of 79 occurrencesEoceneOligocene — about 2 of 79 occurrencesMiocene — about 29 of 79 occurrencesMiocenePliocene — about 20 of 79 occurrencesPleistocene — about 11 of 79 occurrences152–147 Mya — about 2 occurrences147–142 Mya — about 2 occurrences66–61 Mya — about 0.3 occurrences61–56 Mya — about 0.9 occurrences56–51 Mya — about 5 occurrences51–46 Mya — about 3 occurrences46–41 Mya — about 0.9 occurrences41–36 Mya — about 3 occurrences30–25 Mya — about 1 occurrence25–20 Mya — about 5 occurrences20–15 Mya — about 6 occurrences15–10 Mya — about 9 occurrences10–5.1 Mya — about 11 occurrences5.1–0 Mya — about 30 occurrences145.06 Mya774 ka152 Mya0 Mya

79 occurrences of Arca (Arca) on record, most of them in the Miocene. 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

79 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

40 formations

Hatchetigbee Bluff — 31.07°N, 88.03°WHatchetigbee Bluff — 32.08°N, 88.22°WHatchetigbee Bluff — 31.32°N, 86.00°WHatchetigbee Bluff — 31.65°N, 88.08°WCercado — 19.47°N, 71.08°WCercado — 19.57°N, 71.25°WCercado — 19.52°N, 71.27°WCareaga Sandstone — 34.84°N, 120.41°WCareaga Sandstone — 34.90°N, 120.32°WArcadia — 27.89°N, 82.48°WArcadia — 29.25°N, 82.17°WArcadia — 30.21°N, 84.30°WBowden — 17.88°N, 76.28°WMonte Leon Fm — 50.12°S, 68.48°WMonte Leon Fm — 50.37°S, 69.05°WMonte Leon Fm — 50.23°S, 68.92°WUnnamed — 33.24°N, 119.51°WEsmeraldas — 0.95°N, 79.62°WEsmeraldas — 0.95°N, 79.74°WPalembang — 2.92°S, 104.75°EGavdos — 34.83°N, 24.08°EApostoli — 35.25°N, 24.58°EBaitoa — 19.30°N, 70.80°WLomita Marl — 33.75°N, 118.30°WCook Mountain — 30.64°N, 96.52°WSanta Barbara — 34.40°N, 119.69°WEwekoro — 6.92°N, 3.19°EStone City — 30.63°N, 96.54°WSan Julian — 47.13°S, 66.05°WLas Cahobas — 18.54°N, 72.28°WFutuna Limestone — 18.22°S, 178.78°EPucangan — 7.49°S, 110.00°ELower Menkrawit — 1.50°N, 116.50°EKoronia — 35.03°N, 33.15°EGurabo — 19.30°N, 71.67°W

Loading coastlines…

The named rock units Arca (Arca) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 14 occurrences have no formation on record, which is common for older literature.

Arca (Arca) and its relatives

Miocene

Where Arca (Arca) and its relatives were recorded in the Miocene.

Found in the same rock

2,170 taxa

The Paleobiology Database records 49 sites for Arca (Arca), 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

39 references

Each of the 79 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. 27 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 (Arca)

Source
GBIF
Credit
Susanne Spindler
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Coelophrys arca · sio:marine vertebrates:70-340

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 itArca through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Linnaeus 1758