Ctena

Ctena is a genus of bivalves belonging to the family Lucinidae.

Ctena

Harry TAYLOR & Emily A. GLOVER & John D. TAYLOR · 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
CodakiinaePBDB
Diet
chemosymbioticPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 72 million years on record.

The record covers at least 72.2 Mya to 11.7 ka. No occurrence read is dated outside 83.6 Mya to 0 Mya.

Late Cretaceous — about 16 of 161 occurrencesLate CretaceousPaleocene — about 0 of 161 occurrencesEocene — about 0 of 161 occurrencesOligocene — about 37 of 161 occurrencesOligoceneMiocene — about 35 of 161 occurrencesMiocenePliocene — about 25 of 161 occurrencesPleistocene — about 45 of 161 occurrences85–82 Mya — about 0.7 occurrences82–80 Mya — about 2 occurrences80–77 Mya — about 2 occurrences77–74 Mya — about 2 occurrences74–71 Mya — about 3 occurrences71–68 Mya — about 4 occurrences68–65 Mya — about 3 occurrences34–31 Mya — about 14 occurrences31–28 Mya — about 15 occurrences28–26 Mya — about 7 occurrences26–23 Mya — about 1 occurrence23–20 Mya — about 2 occurrences20–17 Mya — about 5 occurrences17–14 Mya — about 7 occurrences14–11 Mya — about 8 occurrences11–8.5 Mya — about 3 occurrences8.5–5.7 Mya — about 8 occurrences5.7–2.8 Mya — about 22 occurrences2.8–0 Mya — about 53 occurrences72.2 Mya11.7 ka85 Mya0 Mya

161 occurrences of Ctena 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

52 formations

Falun de Jeurs — 48.48°N, 2.23°ENacatoch Sand — 32.10°N, 96.47°WNacatoch Sand — 32.59°N, 96.31°WFalun de Morigny — 48.45°N, 2.20°EBowden — 17.88°N, 76.28°WFalun de Pierrefitte — 48.50°N, 2.25°EChipola — 30.44°N, 85.19°WChipola — 30.43°N, 84.98°WJackson Bluff — 30.43°N, 84.57°WWaimanalo — 21.35°N, 158.12°WWaimanalo — 21.70°N, 157.98°WWaimanalo — 21.45°N, 157.72°WFalun d'Auvers-Saint-Georges — 47.40°N, 4.45°EDuplin — 34.90°N, 78.05°WBelmont — 32.33°N, 64.69°WBelmont — 32.36°N, 64.71°WIronshore — 19.33°N, 81.25°WLillo — 51.25°N, 4.28°EDiscovery Point — 29.00°N, 118.27°WDiscovery Point — 28.99°N, 118.23°WConglomerat de Pierrefitte — 48.50°N, 2.25°ESable de Vauroux-Saint-Antoine — 48.43°N, 2.15°ESable de Vauroux-Saint-Antoine — 48.50°N, 2.25°EGoose Creek — 33.33°N, 80.15°WGoose Creek — 33.03°N, 80.39°WDevonshire — 32.30°N, 64.75°WDevonshire — 32.30°N, 64.86°WSpencer's Point — 32.31°N, 64.73°WCaloosahatchee — 26.80°N, 81.37°WCaloosahatchee — 27.77°N, 82.68°WFalmouth — 18.47°N, 77.45°WAldabra Limestone — 9.42°S, 46.45°EHaneji — 26.62°N, 128.00°ERhodes — 36.42°N, 28.20°E

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The named rock units Ctena has been recovered from, largest first. Drawn where the rock is now, not where it formed. 28 further formations hold fewer occurrences each and are not listed. 45 occurrences have no formation on record, which is common for older literature.

Ctena and its relatives

Pleistocene

Where Ctena and its relatives were recorded in the Pleistocene.

Found in the same rock

1,764 taxa

The Paleobiology Database records 113 sites for Ctena, 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

64 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. 52 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 Ctena

Credit
Harry TAYLOR & Emily A. GLOVER & John D. TAYLOR
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Ctena 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 itCodakiinae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Mörch 1860)