Crassinella lunulata

Crassinella lunulata, or the lunate crassinella, is a species of very small bivalve mollusc in the family Crassatellidae. It can be found along the Atlantic coast of North America, ranging from Massachusetts to Texas.

Crassinella lunulata

Eric A. Lazo-Wasem · CC0 · 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
CrassinellaPBDB
Diet
suspension feederPBDB, for Crassinella
Life habit
epifaunalPBDB, for Crassinella
Motility
facultatively mobilePBDB, for Crassinella
Vision
blindPBDB, for Crassatelloidea
Environment
marinePBDB, for Crassatelloidea

Time the record covers

At least 2.5 million years on record.

The record covers at least 2.58 Mya to 11.7 ka. No occurrence read is dated outside 5.333 Mya to 0 Mya.

Miocene — about 0 of 73 occurrencesPliocene — about 24 of 73 occurrencesPliocenePleistocene — about 45 of 73 occurrencesPleistoceneHolocene — about 4 of 73 occurrences5.4–5.3 Mya — about 0.1 occurrences5.3–5.1 Mya — about 0.2 occurrences5.1–4.9 Mya — about 0.2 occurrences4.9–4.7 Mya — about 0.2 occurrences4.7–4.5 Mya — about 0.2 occurrences4.5–4.3 Mya — about 0.2 occurrences4.3–4.1 Mya — about 0.2 occurrences4.1–3.9 Mya — about 0.2 occurrences3.9–3.7 Mya — about 0.2 occurrences3.7–3.5 Mya — about 2 occurrences3.5–3.3 Mya — about 4 occurrences3.3–3.1 Mya — about 4 occurrences3.1–2.9 Mya — about 4 occurrences2.9–2.7 Mya — about 4 occurrences2.7–2.5 Mya — about 4 occurrences2.5–2.3 Mya — about 2 occurrences2.3–2.1 Mya — about 2 occurrences2.1–1.9 Mya — about 2 occurrences1.9–1.8 Mya — about 2 occurrences1.8–1.6 Mya — about 2 occurrences1.6–1.4 Mya — about 2 occurrences1.4–1.2 Mya — about 2 occurrences1.2–972 ka Mya — about 2 occurrences972 ka–778 ka Mya — about 2 occurrences778 ka–583 ka Mya — about 1 occurrence583 ka–389 ka Mya — about 1 occurrence389 ka–194 ka Mya — about 1 occurrence194 ka–0 Mya — about 26 occurrences2.58 Mya11.7 ka5.8 Mya0 Mya

73 occurrences of Crassinella lunulata 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

73 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

17 formations

Waccamaw — 34.50°N, 79.11°WWaccamaw — 34.56°N, 78.49°WWaccamaw — 34.33°N, 78.20°WWaccamaw — 34.23°N, 77.94°WWaccamaw — 34.21°N, 81.31°WWaccamaw — 33.63°N, 79.16°WWaccamaw — 33.40°N, 79.25°WYorktown — 35.54°N, 77.67°WYorktown — 35.51°N, 77.62°WYorktown — 37.10°N, 76.39°WYorktown — 37.25°N, 76.50°WDuplin — 35.00°N, 78.32°WDuplin — 34.50°N, 79.11°WDuplin — 34.62°N, 79.01°WDuplin — 34.90°N, 78.05°WCanepatch — 33.83°N, 78.89°WPamlico — 32.69°N, 80.23°WPamlico — 32.78°N, 79.93°WPamlico — 34.77°N, 76.65°WPamlico — 35.50°N, 76.27°WBermont — 26.89°N, 82.01°WBermont — 27.72°N, 82.43°WBermont — 26.68°N, 80.67°WAcredale — 36.79°N, 76.17°WMare — 10.61°N, 63.52°WMare — 10.64°N, 64.11°WCaloosahatchee — 26.89°N, 82.01°WCaloosahatchee — 27.77°N, 82.68°WChowan RIver — 35.28°N, 76.65°WJackson Bluff — 30.39°N, 84.64°WHorry Clay — 34.97°N, 76.97°WHorry Clay — 33.69°N, 78.89°WJames City — 35.28°N, 76.65°WFort Thompson — 27.72°N, 82.43°WFort Thompson — 26.76°N, 81.44°WNew Orleans Barrier Trend — 30.05°N, 89.96°WBoca Chica — 10.62°N, 64.00°WChuy — 33.88°S, 53.52°W

Loading coastlines…

The named rock units Crassinella lunulata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Crassinella lunulata and its relatives

Pleistocene

Where Crassinella lunulata and its relatives were recorded in the Pleistocene.

Found in the same rock

1,386 taxa

The Paleobiology Database records 48 sites for Crassinella lunulata, 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 73 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 content1

Picture of Crassinella lunulata

Credit
Eric A. Lazo-Wasem
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Crassinella lunulata 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.

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 itCrassinella through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1834)