Arcuatula

Arcuatula is a genus of mussels from the family Mytilidae.

Arcuatula

Conrad, 1846 · 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
MytilidaePBDB
Diet
suspension feederPBDB, for Mytilidae
Life habit
epifaunalPBDB, for Mytilidae
Motility
stationary, attachedPBDB, for Mytilidae
Vision
blindPBDB, for Bivalvia
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Mytilidae

Time the record covers

At least 61 million years on record.

The record covers at least 61.66 Mya to 11.7 ka. No occurrence read is dated outside 66 Mya to 0 Mya.

Late Cretaceous — about 0 of 10 occurrencesPaleocene — about 1 of 10 occurrencesPaleoceneEocene — about 8 of 10 occurrencesEoceneOligocene — about 0 of 10 occurrencesMiocene — about 0 of 10 occurrencesPliocene — about 0 of 10 occurrencesPleistocene — about 0 of 10 occurrences67–65 Mya — about 0.2 occurrences65–63 Mya — about 0.5 occurrences63–61 Mya — about 0.3 occurrences38–36 Mya — about 4 occurrences36–34 Mya — about 4 occurrences2.2–0 Mya — about 1 occurrence61.66 Mya11.7 ka67 Mya0 Mya

10 occurrences of Arcuatula on record, most of them in the Eocene. 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

10 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

2 formations

Submeseta — 64.24°S, 56.65°WSubmeseta — 64.24°S, 56.65°WCalcaire de Mons — 50.45°N, 3.93°E

Loading coastlines…

The named rock units Arcuatula has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Arcuatula and its relatives

Eocene

Where Arcuatula and its relatives were recorded in the Eocene.

Found in the same rock

260 taxa

The Paleobiology Database records 9 sites for Arcuatula, 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

3 references

Each of the 10 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. 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 Arcuatula

Credit
Conrad, 1846
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Arcuatula 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 itMytilidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jousseaume 1919