Thyasira

Thyasira

Uncredited · via Wikidata/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
ThyasiridaePBDB
Diet
chemosymbioticPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 110 million years on record.

The record covers at least 110.1 Mya to 11.7 ka. No occurrence read is dated outside 113.2 Mya to 0 Mya.

Early Cretaceous — about 2 of 163 occurrencesEarly CretaceousLate Cretaceous — about 34 of 163 occurrencesLate CretaceousPaleocene — about 13 of 163 occurrencesPaleoceneEocene — about 21 of 163 occurrencesEoceneOligocene — about 29 of 163 occurrencesOligoceneMiocene — about 19 of 163 occurrencesMiocenePliocene — about 11 of 163 occurrencesPleistocene — about 31 of 163 occurrences115–112 Mya — about 0.6 occurrences112–108 Mya — about 0.8 occurrences108–104 Mya — about 0.3 occurrences104–100 Mya — about 0.4 occurrences100–96 Mya — about 1 occurrence96–92 Mya — about 0.8 occurrences92–89 Mya — about 0.7 occurrences89–85 Mya — about 4 occurrences85–81 Mya — about 6 occurrences81–77 Mya — about 5 occurrences77–73 Mya — about 5 occurrences73–69 Mya — about 5 occurrences69–65 Mya — about 6 occurrences65–62 Mya — about 7 occurrences62–58 Mya — about 3 occurrences58–54 Mya — about 4 occurrences54–50 Mya — about 3 occurrences50–46 Mya — about 3 occurrences46–42 Mya — about 3 occurrences42–38 Mya — about 2 occurrences38–35 Mya — about 6 occurrences35–31 Mya — about 8 occurrences31–27 Mya — about 9 occurrences27–23 Mya — about 13 occurrences23–19 Mya — about 2 occurrences19–15 Mya — about 4 occurrences15–12 Mya — about 8 occurrences12–7.7 Mya — about 3 occurrences7.7–3.8 Mya — about 4 occurrences3.8–0 Mya — about 42 occurrences110.1 Mya11.7 ka115 Mya0 Mya

163 occurrences of Thyasira on record, most of them in the Late Cretaceous. 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

163 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

67 formations

Timms Point Silt — 33.73°N, 118.28°WPierre Shale — 43.27°N, 104.25°WPierre Shale — 42.93°N, 103.70°WLondon Clay — 51.40°N, 0.83°ELondon Clay — 51.73°N, 0.48°ELondon Clay — 51.51°N, 0.24°EPysht — 48.16°N, 123.90°WPysht — 48.15°N, 124.00°WSagavanirktok — 69.96°N, 144.77°WSagavanirktok — 69.96°N, 144.73°WMakah — 48.30°N, 124.42°WMakah — 48.35°N, 124.55°WKangilia — 70.33°N, 53.08°WOkhonchevayamskaya — 60.42°N, 165.92°EOkarahia Sandstone — 42.57°S, 173.52°EOkarahia Sandstone — 42.60°S, 173.42°ELincoln Creek — 46.28°N, 123.81°WLincoln Creek — 46.60°N, 123.60°WLincoln Creek — 47.31°N, 123.52°WHumptulips — 47.25°N, 123.82°WHumptulips — 47.32°N, 123.57°WLomita Marl — 33.75°N, 118.30°WLomita Marl — 33.74°N, 118.29°WTumey — 36.55°N, 120.49°WKreyenhagen — 36.55°N, 120.49°WKauru — 45.04°S, 170.76°EKauru — 45.05°S, 170.77°ESinegorskiy — 47.45°N, 142.76°EConway Siltstone — 42.57°S, 173.52°EBranden Clay — 56.80°N, 9.04°EBranden Clay — 57.27°N, 9.73°EShoal River — 30.72°N, 86.12°WShoal River — 30.69°N, 86.65°WSan Pedro Sand — 33.74°N, 118.28°WAnchor — 34.04°N, 118.40°WSelsey — 50.73°N, 0.78°WRødvig — 56.97°N, 9.68°EUmm al-Rua’us — 26.43°N, 50.11°E

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The named rock units Thyasira has been recovered from, largest first. Drawn where the rock is now, not where it formed. 43 further formations hold fewer occurrences each and are not listed. 44 occurrences have no formation on record, which is common for older literature.

Thyasira and its relatives

Late Cretaceous

Where Thyasira and its relatives were recorded in the Late Cretaceous.

Found in the same rock

2,667 taxa

The Paleobiology Database records 112 sites for Thyasira, 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

86 references

Each of the 163 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. 74 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 Thyasira

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Thyasira 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.

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

Keep going

What may have been alongside itThyasiridae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lamarck 1818