Thalassiosiraceae

Thalassiosiraceae is a family of diatoms in the order Thalassiosirales. The family of Thalassiosiraceae have the unique quality of having a flat valve face. These diatoms are common in brackish, nearshore, and open-ocean habitats, with approximately the same number of freshwater and marine species.

Thalassiosiraceae

Picturepest · CC BY 2.0 · 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
ThalassiosiralesPBDB
Diet
"photoautotroph"PBDB, for Bacillariophyceae
Environment
marine,brackish,freshwaterPBDB, for Bacillariophyceae

Time the record covers

At least 27 million years on record.

The record covers at least 27.3 Mya to 11.7 ka. No occurrence read is dated outside 33.9 Mya to 0 Mya.

Eocene — about 0 of 6435 occurrencesOligocene — about 2 of 6435 occurrencesOligoceneMiocene — about 672 of 6435 occurrencesMiocenePliocene — about 1170 of 6435 occurrencesPleistocene — about 4445 of 6435 occurrences35–33 Mya — about 0.1 occurrences33–32 Mya — about 0.3 occurrences32–31 Mya — about 0.3 occurrences31–30 Mya — about 0.3 occurrences30–29 Mya — about 0.3 occurrences29–28 Mya — about 0.3 occurrences28–27 Mya — about 0.2 occurrences27–25 Mya — about 0.1 occurrences25–24 Mya — about 0.1 occurrences24–23 Mya — about 0.1 occurrences23–22 Mya — about 9 occurrences22–21 Mya — about 9 occurrences21–20 Mya — about 9 occurrences20–18 Mya — about 9 occurrences18–17 Mya — about 9 occurrences17–16 Mya — about 9 occurrences16–15 Mya — about 28 occurrences15–14 Mya — about 31 occurrences14–13 Mya — about 31 occurrences13–12 Mya — about 36 occurrences12–10 Mya — about 82 occurrences10–9.2 Mya — about 82 occurrences9.2–8.1 Mya — about 84 occurrences8.1–6.9 Mya — about 99 occurrences6.9–5.8 Mya — about 102 occurrences5.8–4.6 Mya — about 305 occurrences4.6–3.5 Mya — about 451 occurrences3.5–2.3 Mya — about 803 occurrences2.3–1.2 Mya — about 2197 occurrences1.2–0 Mya — about 2046 occurrences27.3 Mya11.7 ka34.6 Mya0 Mya

6,435 occurrences of Thalassiosiraceae 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

6,435 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

8 formations

Embetsu — 44.35°N, 141.73°EDaineji — 37.37°N, 141.04°EFormación Coquimbo — 29.08°S, 71.46°WPungo River — 35.40°N, 76.80°WChalk Hills — 42.94°N, 116.56°WChalk Hills — 43.11°N, 116.28°WMochikubetsu — 44.38°N, 141.71°EKinkomanai — 44.54°N, 141.82°EChepotsunai — 44.32°N, 141.67°E

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The named rock units Thalassiosiraceae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6,407 occurrences have no formation on record, which is common for older literature.

Thalassiosiraceae and its relatives

Pleistocene

Where Thalassiosiraceae and its relatives were recorded in the Pleistocene.

Found in the same rock

298 taxa

The Paleobiology Database records at least 755 sites for Thalassiosiraceae, and this reads 240 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

64 references

Each of the 6,435 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Thalassiosiraceae

Credit
Picturepest
Licence
CC BY 2.0
Commercial use
the licence allows it

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

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 itThalassiosirales through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lebour 1930