Arcopsis adamsi

Dall, 1886 · 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
- ArcopsisPBDB
- Diet
- suspension feederPBDB, for Arcopsis
- Life habit
- epifaunalPBDB, for Arcopsis
- Motility
- stationary, attachedPBDB, for Arcopsis
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 20 million years on record.
The record covers at least 20.45 Mya to 11.7 ka. No occurrence read is dated outside 27.3 Mya to 0 Mya.
62 occurrences of Arcopsis adamsi 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
62 occurrences- Oligocene1%
- Miocene18%
- Pliocene23%
- Pleistocene55%
- Holocene3%
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
22 formations
- Caloosahatchee Formation10
- Waccamaw Formation6
- Talparo Formation5
- Bermont Formation4
- Shoal River Formation · Alum Bluff Group4
- Bowden Formation · Coastal Group4
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The named rock units Arcopsis adamsi has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Arcopsis adamsi and its relatives
PleistoceneWhere Arcopsis adamsi and its relatives were recorded in the Pleistocene.
Found in the same rock
1,936 taxa- Chione cancellata18 sites
- Turritella17 sites
- Anadara16 sites
- Anomia simplex14 sites
- Calyptraea centralis14 sites
- Nuculana acuta13 sites
- Parvilucina multistriata13 sites
- Plicatula gibbosa13 sites
- Tectonatica pusilla13 sites
- Cerithium12 sites
- Diodora12 sites
- Olivella mutica12 sites
- Timoclea grus12 sites
- Bostrycapulus aculeatus11 sites
- Chama11 sites
- Crassinella11 sites
- Crassinella lunulata11 sites
- Crepidula plana11 sites
- Diodora cayenensis11 sites
- Marginella11 sites
- Mulinia lateralis11 sites
- Pleuromeris tridentata11 sites
- Trachycardium11 sites
- Anadara (Larkinia) transversa10 sites
The Paleobiology Database records 37 sites for Arcopsis adamsi, 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
24 references- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions16
- Miocene and Pliocene mollusks from Trinidad7
- The Molluscan Fauna of the Alum Bluff Group of Florida7
- Neogene Biostratigraphy of the Charlotte Harbor Area in Southwestern Florida6
- The Pleistocene molluscan fauna from Leisley Shell Pit 1, Hillsborough County, Florida3
- Geology of the Western Everglades Area, Southern Florida3
- Relict shelf-edge Holocene coral reef: southeast coast of Florida2
- Geology of the Coastal Plain of South Carolina2
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel1
- Mollusca: Fort Thompson Formation (Late Pleistocene)1
- Mollusca: Shoal River Formation (Middle Miocene1
- Neogene Stratigraphy of the lower Coast Plain of the Carolinas1
Each of the 62 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. 12 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 Arcopsis adamsi
- Source
- Wikidata/Commons
- Credit
- Dall, 1886
- Licence
- CC0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Arcopsis adamsi · FMNH:Invertebrate Zoology:94728
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itArcopsis through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Dall 1886)