Chama congregata

Chama congregata, commonly known as the corrugated jewel box clam, is a species of bivalve mollusc in the family Chamidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to the West Indies and Bermuda.

Chama congregata

Thomas Irvine · CC BY 4.0 · via Wikipedia/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
ChamaPBDB
Diet
suspension feederPBDB, for Chama
Life habit
epifaunalPBDB, for Chama
Motility
stationary, attached, epibiontPBDB, for Chama
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 15 million years on record.

The record covers at least 15.98 Mya to 11.7 ka. No occurrence read is dated outside 23.04 Mya to 0 Mya.

Oligocene — about 0 of 46 occurrencesMiocene — about 3 of 46 occurrencesMiocenePliocene — about 27 of 46 occurrencesPliocenePleistocene — about 11 of 46 occurrencesPleistocene24–23 Mya — about 0.1 occurrences23–22 Mya — about 0.2 occurrences22–21 Mya — about 0.2 occurrences21–20 Mya — about 0.2 occurrences20–20 Mya — about 0.2 occurrences20–19 Mya — about 0.2 occurrences19–18 Mya — about 0.2 occurrences18–17 Mya — about 0.2 occurrences17–16 Mya — about 0.2 occurrences16–16 Mya — about 0.1 occurrences12–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.4 Mya — about 0.1 occurrences9.4–8.6 Mya — about 0.1 occurrences8.6–7.8 Mya — about 0.1 occurrences7.8–7.1 Mya — about 0.1 occurrences7.1–6.3 Mya — about 0.1 occurrences6.3–5.5 Mya — about 0.1 occurrences5.5–4.7 Mya — about 2 occurrences4.7–3.9 Mya — about 3 occurrences3.9–3.1 Mya — about 11 occurrences3.1–2.4 Mya — about 12 occurrences2.4–1.6 Mya — about 2 occurrences1.6–785 ka Mya — about 2 occurrences785 ka–0 Mya — about 12 occurrences15.98 Mya11.7 ka23.5 Mya0 Mya

46 occurrences of Chama congregata 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

46 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

16 formations

Yorktown — 36.44°N, 77.10°WYorktown — 37.51°N, 77.21°WYorktown — 37.17°N, 76.77°WYorktown — 37.27°N, 76.57°WYorktown — 37.23°N, 76.51°WYorktown — 37.21°N, 76.69°WMare — 10.00°N, 64.00°WMare — 10.00°N, 71.00°WMare — 10.61°N, 63.52°WMare — 10.64°N, 64.11°WJackson Bluff — 30.43°N, 84.57°WBermont — 27.72°N, 82.43°WBermont — 26.68°N, 80.67°WKirkwood — 39.47°N, 75.35°WKirkwood — 39.46°N, 75.30°WFort Thompson — 26.80°N, 81.37°WIronshore — 19.33°N, 81.25°WMunguidó — 4.32°N, 76.93°WMunguidó — 4.43°N, 77.00°WNew Orleans Barrier Trend — 30.05°N, 89.96°WPlaya Grande — 10.00°N, 71.00°WAbisinia — 10.00°N, 63.00°WCercado — 19.53°N, 71.27°WCaloosahatchee — 26.75°N, 80.93°WWaccamaw — 33.86°N, 78.55°WAraya — 10.62°N, 64.00°WCayo Agua — 9.15°N, 82.03°W

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The named rock units Chama congregata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Chama congregata and its relatives

Pliocene

Where Chama congregata and its relatives were recorded in the Pliocene.

Found in the same rock

949 taxa

The Paleobiology Database records 26 sites for Chama congregata, 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

20 references

Each of the 46 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. 8 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 Chama congregata

Credit
Thomas Irvine
Licence
CC BY 4.0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Chama congregata · FMNH:Invertebrate Zoology:288725

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itChama through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Conrad 1833