Arca divaricata

Arca divaricata (Sowerby, 1833), a relative of Arca divaricata — not Arca divaricata itself

Not Arca divaricata. This is Arca divaricata (Sowerby, 1833), a relative — both are Arcidae.

via GBIF · CC0 · 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 3.4 million years on record.

The record covers at least 3.6 Mya to 129 ka. No occurrence read is dated outside 5.333 Mya to 11.7 ka.

Miocene — about 0 of 2 occurrencesPliocene — about 1 of 2 occurrencesPliocenePleistocene — about 1 of 2 occurrencesPleistoceneHolocene — about 0 of 2 occurrences5.4–5.3 Mya — about 0.0 occurrences5.3–5.1 Mya — about 0.1 occurrences5.1–4.9 Mya — about 0.1 occurrences4.9–4.7 Mya — about 0.1 occurrences4.7–4.5 Mya — about 0.1 occurrences4.5–4.3 Mya — about 0.1 occurrences4.3–4.1 Mya — about 0.1 occurrences4.1–3.9 Mya — about 0.1 occurrences3.9–3.7 Mya — about 0.1 occurrences3.7–3.5 Mya — about 0.1 occurrences194 ka–0 Mya — about 1 occurrence3.6 Mya129 ka5.8 Mya0 Mya

2 occurrences of Arca divaricata on record, most of them in the Pliocene. 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

2 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

1 formation

Mekran — 25.12°N, 62.33°E

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The named rock units Arca divaricata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Arca divaricata and its relatives

Pliocene

Where Arca divaricata and its relatives were recorded in the Pliocene.

Found in the same rock

The Paleobiology Database records no fossil sites for Arca divaricata, so there is nothing to compare it with.

Entered from

2 references

Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Arca divaricata (Sowerby, 1833)

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Arca divaricata 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.

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 PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Sowerby 1833)