Arca pacifica
Sowerby, 1833 · CC0 · via Wikidata/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- 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.
6 occurrences of Arca pacifica 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
6 occurrences- Pliocene67%
- Pleistocene33%
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
2 formations
Loading coastlines…
The named rock units Arca pacifica has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Arca pacifica and its relatives
PlioceneWhere Arca pacifica and its relatives were recorded in the Pliocene.
Found in the same rock
51 taxa- Anadara reinharti3 sites
- Anodontia edentuloides3 sites
- Arcinella californica3 sites
- Argopecten3 sites
- Codakia distinguenda3 sites
- Dosinia semiobliterata3 sites
- Euvola keepi3 sites
- Glycymeris (Glycymeris) gigantea3 sites
- Kalolophus antillarum3 sites
- Lucinisca nuttalli3 sites
- Pycnodonte heermanni3 sites
- Spondylus3 sites
- Strophocardia megastropha3 sites
- Agaronia2 sites
- Atys2 sites
- Barbatia2 sites
- Chama2 sites
- Chione2 sites
- Dendostrea vespertina2 sites
- Divalinga eburnea2 sites
- Miltha xantusi2 sites
- Naticidae2 sites
- Ostrea angelica2 sites
- Pinna latrania2 sites
The Paleobiology Database records 4 sites for Arca pacifica, 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
4 references- Pliocene Invertebrates From the Travertine Point Outcrop of the Imperial Formation, Imperial County, California3
- Late Pleistocene coral-reef development on Isla Coronados, Gulf of California1
- Upper Pleistocene Rocky Shores and Intertidal Biotas at Playa La Palmita (Baja California Sur,Mexico)1
- Pliocene fossils from Baltra (South Seymour) Island, Galápagos Islands1
Each of the 6 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. 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 Arca pacifica
- Source
- Wikidata/Commons
- Credit
- Sowerby, 1833
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Arca pacifica 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)