Sphenia

Sphenia

via iDigBio · CC BY-NC-ND · via iDigBio. 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
MyidaePBDB
Diet
suspension feederPBDB
Life habit
infaunalPBDB
Motility
stationaryPBDB
Vision
blindPBDB, for Bivalvia

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 68 occurrencesPaleocene — about 5 of 68 occurrencesPaleoceneEocene — about 6 of 68 occurrencesEoceneOligocene — about 12 of 68 occurrencesOligoceneMiocene — about 14 of 68 occurrencesMiocenePliocene — about 10 of 68 occurrencesPleistocene — about 13 of 68 occurrences67–65 Mya — about 1 occurrence65–63 Mya — about 3 occurrences63–61 Mya — about 1 occurrence56–54 Mya — about 0.8 occurrences54–52 Mya — about 0.8 occurrences52–49 Mya — about 0.8 occurrences49–47 Mya — about 0.7 occurrences47–45 Mya — about 0.5 occurrences45–43 Mya — about 0.5 occurrences43–40 Mya — about 0.4 occurrences40–38 Mya — about 0.2 occurrences38–36 Mya — about 0.5 occurrences36–34 Mya — about 0.9 occurrences34–31 Mya — about 3 occurrences31–29 Mya — about 3 occurrences29–27 Mya — about 3 occurrences27–25 Mya — about 1 occurrence25–22 Mya — about 1 occurrence22–20 Mya — about 2 occurrences20–18 Mya — about 1 occurrence18–16 Mya — about 2 occurrences16–13 Mya — about 4 occurrences13–11 Mya — about 5 occurrences6.7–4.5 Mya — about 0.5 occurrences4.5–2.2 Mya — about 12 occurrences2.2–0 Mya — about 19 occurrences61.66 Mya11.7 ka67 Mya0 Mya

68 occurrences of Sphenia on record, most of them in the Miocene. 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

68 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

34 formations

James City — 35.04°N, 76.99°WCalcaire de Mons — 50.45°N, 3.93°EBorgloon — 50.80°N, 5.33°EBorgloon — 50.89°N, 5.64°ESable de Vauroux-Saint-Antoine — 48.43°N, 2.15°EMeganos — 37.88°N, 121.71°WBermont — 27.72°N, 82.43°WBermont — 26.68°N, 80.67°WYorktown — 37.23°N, 76.51°WLillo — 51.25°N, 4.28°EFalun de Sainte-Avit — 43.91°N, 0.66°WCareaga Sandstone — 34.74°N, 120.41°WCareaga Sandstone — 34.86°N, 120.46°WSan Diego — 32.54°N, 117.11°WSelsey — 51.02°N, 1.32°WCalcaire Grossier d'Etrechy — 48.48°N, 2.23°EFalun d'Auvers-Saint-Georges — 47.40°N, 4.45°EFalun de Jeurs — 48.47°N, 2.17°EFalun de Pierrefitte — 48.50°N, 2.25°EConglomerat de Pierrefitte — 48.50°N, 2.25°EVejle Fjord — 55.18°N, 11.88°ECalcaire de Vigny — 49.07°N, 1.92°EPinczow — 50.47°N, 20.80°EHeadon Beds — 50.72°N, 1.59°WSnatol'skaya — 57.78°N, 158.58°EWeglin — 50.72°N, 21.95°EFels — 48.51°N, 15.77°E

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The named rock units Sphenia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 further formations hold fewer occurrences each and are not listed. 17 occurrences have no formation on record, which is common for older literature.

Sphenia and its relatives

Miocene

Where Sphenia and its relatives were recorded in the Miocene.

Found in the same rock

2,151 taxa

The Paleobiology Database records 47 sites for Sphenia, 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

37 references

Each of the 68 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. 25 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 Sphenia

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Sphenia fragilis · USNM:IZ:USNM 217824

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

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

Keep going

What may have been alongside itMyidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Turton 1822