Rangia

Rangia is a genus of bivalve molluscs or clams in the subfamily Mactrinae of the family Mactridae.

Rangia

Philippe MAESTRATI · 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
MactrinaePBDB
Diet
suspension feederPBDB, for Mactridae
Life habit
infaunalPBDB, for Mactridae
Motility
facultatively mobilePBDB, for Mactridae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 93 million years on record.

The record covers at least 93.9 Mya to 11.7 ka. No occurrence read is dated outside 100.5 Mya to 0 Mya.

Early Cretaceous — about 0 of 59 occurrencesLate Cretaceous — about 2 of 59 occurrencesLate CretaceousPaleocene — about 1 of 59 occurrencesPaleoceneEocene — about 1 of 59 occurrencesEoceneOligocene — about 0 of 59 occurrencesMiocene — about 4 of 59 occurrencesMiocenePliocene — about 7 of 59 occurrencesPleistocene — about 37 of 59 occurrences103–99 Mya — about 0.4 occurrences99–96 Mya — about 1 occurrence96–92 Mya — about 0.5 occurrences68–65 Mya — about 0.2 occurrences65–62 Mya — about 0.8 occurrences51–48 Mya — about 0.0 occurrences48–44 Mya — about 0.5 occurrences44–41 Mya — about 0.5 occurrences17–14 Mya — about 0.5 occurrences14–10 Mya — about 1 occurrence10–6.8 Mya — about 2 occurrences6.8–3.4 Mya — about 5 occurrences3.4–0 Mya — about 47 occurrences93.9 Mya11.7 ka103 Mya0 Mya

59 occurrences of Rangia 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

59 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

19 formations

Caloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 27.77°N, 82.68°WCaloosahatchee — 26.96°N, 81.17°WPensacola — 31.01°N, 88.71°WPensacola — 30.19°N, 88.90°WPensacola — 30.49°N, 88.55°WPensacola — 30.25°N, 88.69°WTalbot — 39.29°N, 76.38°WTalbot — 39.22°N, 76.48°WTalbot — 38.15°N, 76.43°WTalbot — 38.29°N, 76.64°WTalbot — 38.40°N, 77.12°WAcredale — 36.79°N, 76.17°WAcredale — 36.73°N, 76.34°WFort Thompson — 27.72°N, 82.43°WFort Thompson — 26.75°N, 81.39°WPamlico — 34.78°N, 76.69°WPamlico — 34.04°N, 77.89°WPamlico — 33.56°N, 79.08°WBermont — 27.72°N, 82.43°WBermont — 26.68°N, 80.67°WRaritan — 40.46°N, 74.36°WNew Orleans Barrier Trend — 30.05°N, 89.96°WMichoud — 30.05°N, 89.96°WWaccamaw — 34.21°N, 81.31°WWaccamaw — 33.63°N, 79.16°WNorfolk — 36.92°N, 76.49°WCalcaire de Mons — 50.45°N, 3.93°EDeltaic Mud — 30.05°N, 89.96°WDomanda — 30.03°N, 70.15°EYorktown — 37.23°N, 76.51°WBear Bluff — 26.76°N, 81.44°WCharlton — 31.16°N, 81.86°WPalos Verdes Sand — 33.60°N, 117.88°W

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The named rock units Rangia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Rangia and its relatives

Pleistocene

Where Rangia and its relatives were recorded in the Pleistocene.

Found in the same rock

1,754 taxa

The Paleobiology Database records 38 sites for Rangia, 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

23 references

Each of the 59 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. 11 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 Rangia

Credit
Philippe MAESTRATI
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
Rangia flexuosa · fmnh:invertebrate zoology:158441

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 itMactrinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Des Moulins 1832