Arcopsis

Arcopsis

via iDigBio · CC BY-NC · 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
NoetiidaePBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
stationary, attachedPBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 65 million years on record.

The record covers at least 66 Mya to 11.7 ka. No occurrence read is dated outside 72.2 Mya to 0 Mya.

Late Cretaceous — about 6 of 161 occurrencesLate CretaceousPaleocene — about 13 of 161 occurrencesPaleoceneEocene — about 10 of 161 occurrencesEoceneOligocene — about 1 of 161 occurrencesOligoceneMiocene — about 29 of 161 occurrencesMiocenePliocene — about 45 of 161 occurrencesPleistocene — about 53 of 161 occurrences74–71 Mya — about 1.0 occurrences71–69 Mya — about 2 occurrences69–66 Mya — about 2 occurrences66–64 Mya — about 3 occurrences64–61 Mya — about 4 occurrences61–59 Mya — about 6 occurrences59–56 Mya — about 0.2 occurrences56–54 Mya — about 0.3 occurrences54–52 Mya — about 0.3 occurrences52–49 Mya — about 0.3 occurrences49–47 Mya — about 1 occurrence47–44 Mya — about 2 occurrences44–42 Mya — about 2 occurrences42–39 Mya — about 0.7 occurrences39–37 Mya — about 1 occurrence37–34 Mya — about 2 occurrences34–32 Mya — about 0.4 occurrences29–27 Mya — about 0.0 occurrences27–25 Mya — about 0.4 occurrences25–22 Mya — about 0.9 occurrences22–20 Mya — about 3 occurrences20–17 Mya — about 5 occurrences17–15 Mya — about 4 occurrences15–12 Mya — about 7 occurrences12–9.8 Mya — about 5 occurrences9.8–7.4 Mya — about 3 occurrences7.4–4.9 Mya — about 7 occurrences4.9–2.5 Mya — about 42 occurrences2.5–0 Mya — about 56 occurrences66 Mya11.7 ka74 Mya0 Mya

161 occurrences of Arcopsis 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

161 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

60 formations

Caloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 26.77°N, 81.15°WCaloosahatchee — 27.77°N, 82.68°WCaloosahatchee — 26.75°N, 80.93°WBowden — 17.88°N, 76.28°WLellinge Greensand — 55.71°N, 12.60°ELellinge Greensand — 55.48°N, 10.47°EWaccamaw — 34.56°N, 78.49°WWaccamaw — 34.33°N, 78.20°WWaccamaw — 34.17°N, 78.60°WWaccamaw — 33.63°N, 79.16°WWaccamaw — 33.40°N, 79.25°WTalparo — 10.67°N, 61.07°WBermont — 26.89°N, 82.01°WBermont — 27.72°N, 82.43°WBermont — 26.68°N, 80.67°WShoal River — 30.72°N, 86.12°WShoal River — 30.65°N, 86.04°WFort Thompson — 27.72°N, 82.43°WFort Thompson — 26.76°N, 81.44°WChipola — 30.44°N, 85.19°WChipola — 30.06°N, 84.49°WTogopi — 5.50°N, 117.00°EMoin — 9.99°N, 83.05°WKlasaman — 0.88°S, 131.25°EOak Grove — 30.92°N, 86.57°WAmeki — 6.83°N, 7.08°EAmeki — 5.57°N, 7.52°ETalar — 25.33°N, 62.00°ETalar — 25.33°N, 65.50°ESpringvale — 10.62°N, 61.05°WAscot — 32.08°S, 115.92°ETamiami — 26.70°N, 80.99°WTamiami — 25.67°N, 80.31°WBaghmara — 25.27°N, 90.23°EBaghmara — 25.18°N, 90.67°EGaj — 23.33°N, 68.85°EGaj — 26.88°N, 67.26°EEscudo de Veraguas — 9.10°N, 81.55°WEscudo de Veraguas — 9.10°N, 81.57°WTentokuji — 39.75°N, 140.41°EKincaid — 31.29°N, 96.72°WCalcaire de Vigny — 49.07°N, 1.92°E

Loading coastlines…

The named rock units Arcopsis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 36 further formations hold fewer occurrences each and are not listed. 45 occurrences have no formation on record, which is common for older literature.

Arcopsis and its relatives

Pleistocene

Where Arcopsis and its relatives were recorded in the Pleistocene.

Found in the same rock

2,128 taxa

The Paleobiology Database records 93 sites for Arcopsis, and this reads all 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

73 references

Each of the 161 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. 61 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

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC
Commercial use
the licence does not allow it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Arcopsis adamsi · FMNH:Invertebrate Zoology:94728

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 itNoetiidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Koenen 1885)