Yoldia (Kalayoldia) tenuissima

Yoldia (Kalayoldia) tenuissima

via GBIF · CC BY 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
Yoldia (Kalayoldia)PBDB
Diet
deposit feederPBDB, for Yoldia
Life habit
infaunalPBDB, for Yoldia
Motility
facultatively mobilePBDB, for Yoldia
Vision
blindPBDB, for Bivalvia
Environment
inner shelf,outer shelf,oceanicPBDB, for Yoldiidae

Time the record covers

At least 6.6 million years on record.

The record covers at least 33.9 Mya to 27.3 Mya. No occurrence read is dated outside 37.71 Mya to 23.04 Mya.

Eocene — about 2 of 9 occurrencesEoceneOligocene — about 7 of 9 occurrencesOligoceneMiocene — about 0 of 9 occurrences38–38 Mya — about 0.0 occurrences38–37 Mya — about 0.3 occurrences37–37 Mya — about 0.3 occurrences37–36 Mya — about 0.3 occurrences36–36 Mya — about 0.3 occurrences36–35 Mya — about 0.3 occurrences35–35 Mya — about 0.3 occurrences35–34 Mya — about 0.3 occurrences34–34 Mya — about 0.1 occurrences28–27 Mya — about 0.1 occurrences27–27 Mya — about 0.9 occurrences27–26 Mya — about 0.9 occurrences26–26 Mya — about 0.9 occurrences26–25 Mya — about 0.9 occurrences25–25 Mya — about 0.9 occurrences25–24 Mya — about 0.9 occurrences24–24 Mya — about 0.9 occurrences24–23 Mya — about 0.9 occurrences23–23 Mya — about 0.0 occurrences33.9 Mya27.3 Mya38.2 Mya22.5 Mya

9 occurrences of Yoldia (Kalayoldia) tenuissima 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

9 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

3 formations

Temblor — 35.50°N, 119.78°WTemblor — 35.40°N, 119.81°WEugene — 44.05°N, 123.09°WSan Emigdio — 35.06°N, 119.18°W

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The named rock units Yoldia (Kalayoldia) tenuissima has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Yoldia (Kalayoldia) tenuissima and its relatives

Oligocene

Where Yoldia (Kalayoldia) tenuissima and its relatives were recorded in the Oligocene.

Found in the same rock

60 taxa

The Paleobiology Database records 9 sites for Yoldia (Kalayoldia) tenuissima, 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 9 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 Yoldia (Kalayoldia) tenuissima

Source
GBIF
Credit
via GBIF
Licence
CC BY 4.0
Commercial use
the licence allows 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 itYoldia (Kalayoldia) through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Clark 1918)