Thalassionema

Thalassionema is a genus of Chromista belonging to the family Thalassionemataceae.

Thalassionema

Minami Himemiya · CC BY-SA 3.0 · 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
ThalassionemataceaePBDB
Diet
"photoautotroph"PBDB, for Bacillariophyceae
Environment
marine,brackish,freshwaterPBDB, for Bacillariophyceae

Time the record covers

At least 19 million years on record.

The record covers at least 19.2 Mya to 11.7 ka. No occurrence read is dated outside 23.2 Mya to 0 Mya.

Oligocene — about 0 of 2102 occurrencesMiocene — about 695 of 2102 occurrencesMiocenePliocene — about 364 of 2102 occurrencesPliocenePleistocene — about 1016 of 2102 occurrencesPleistocene24–23 Mya — about 1 occurrence23–22 Mya — about 6 occurrences22–21 Mya — about 6 occurrences21–21 Mya — about 6 occurrences21–20 Mya — about 6 occurrences20–19 Mya — about 6 occurrences19–18 Mya — about 6 occurrences18–17 Mya — about 6 occurrences17–17 Mya — about 6 occurrences17–16 Mya — about 11 occurrences16–15 Mya — about 26 occurrences15–14 Mya — about 26 occurrences14–13 Mya — about 26 occurrences13–13 Mya — about 26 occurrences13–12 Mya — about 26 occurrences12–11 Mya — about 48 occurrences11–10 Mya — about 57 occurrences10–9.5 Mya — about 57 occurrences9.5–8.7 Mya — about 57 occurrences8.7–7.9 Mya — about 61 occurrences7.9–7.1 Mya — about 67 occurrences7.1–6.3 Mya — about 68 occurrences6.3–5.5 Mya — about 69 occurrences5.5–4.7 Mya — about 90 occurrences4.7–4.0 Mya — about 97 occurrences4.0–3.2 Mya — about 115 occurrences3.2–2.4 Mya — about 139 occurrences2.4–1.6 Mya — about 261 occurrences1.6–790 ka Mya — about 347 occurrences790 ka–0 Mya — about 377 occurrences19.2 Mya11.7 ka23.7 Mya0 Mya

2,102 occurrences of Thalassionema 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

2,102 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

6 formations

Embetsu — 44.35°N, 141.73°EPungo River — 35.40°N, 76.80°WDaineji — 37.37°N, 141.04°ERosarito Beach — 32.12°N, 116.80°WChoptank — 38.44°N, 76.44°WFormación Coquimbo — 29.08°S, 71.46°W

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The named rock units Thalassionema has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2,096 occurrences have no formation on record, which is common for older literature.

Thalassionema and its relatives

Pleistocene

Where Thalassionema and its relatives were recorded in the Pleistocene.

Found in the same rock

391 taxa

The Paleobiology Database records at least 1,498 sites for Thalassionema, 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

57 references

Each of the 2,102 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. 45 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 Thalassionema

Credit
Minami Himemiya
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Thalassionema 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.

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 itThalassionemataceae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mereschkowsky 1902