Spisula twinensis

Spisula twinensis

Archer Lamason · CC BY-NC 4.0 · via GBIF. 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
SpisulaPBDB
Diet
suspension feederPBDB, for Spisula
Life habit
infaunalPBDB, for Spisula
Motility
facultatively mobilePBDB, for Spisula
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 4.3 million years on record.

Every occurrence read is dated to somewhere between 27.3 Mya and 23.04 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 2 of 2 occurrencesOligoceneMiocene — about 0 of 2 occurrences27–27 Mya — about 0.0 occurrences27–27 Mya — about 0.1 occurrences27–27 Mya — about 0.1 occurrences27–27 Mya — about 0.1 occurrences27–27 Mya — about 0.1 occurrences27–26 Mya — about 0.1 occurrences26–26 Mya — about 0.1 occurrences26–26 Mya — about 0.1 occurrences26–26 Mya — about 0.1 occurrences26–26 Mya — about 0.1 occurrences26–26 Mya — about 0.1 occurrences26–25 Mya — about 0.1 occurrences25–25 Mya — about 0.1 occurrences25–25 Mya — about 0.1 occurrences25–25 Mya — about 0.1 occurrences25–25 Mya — about 0.1 occurrences25–24 Mya — about 0.1 occurrences24–24 Mya — about 0.1 occurrences24–24 Mya — about 0.1 occurrences24–24 Mya — about 0.1 occurrences24–24 Mya — about 0.1 occurrences24–24 Mya — about 0.1 occurrences24–23 Mya — about 0.1 occurrences23–23 Mya — about 0.1 occurrences23–23 Mya — about 0.1 occurrences23–23 Mya — about 0.0 occurrences27.8 Mya22.5 Mya

2 occurrences of Spisula twinensis on record, most of them in the Oligocene. 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

2 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

1 formation

Blakeley — 47.58°N, 122.48°WBlakeley — 48.16°N, 123.95°W

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The named rock units Spisula twinensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Spisula twinensis and its relatives

Oligocene

Where Spisula twinensis and its relatives were recorded in the Oligocene.

Found in the same rock

75 taxa

The Paleobiology Database records 2 sites for Spisula twinensis, 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

2 references

Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Spisula twinensis

Source
GBIF
Credit
Archer Lamason
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itSpisula through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Clark 1925