Pyxilla

Pyxilla

via iDigBio · via iDigBio. 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
PyxillaceaePBDB
Diet
"photoautotroph"PBDB, for Bacillariophyceae
Environment
marine,brackish,freshwaterPBDB, for Bacillariophyceae

Time the record covers

At least 40 million years on record.

The record covers at least 41.03 Mya to 129 ka. No occurrence read is dated outside 48.07 Mya to 11.7 ka.

Eocene — about 1 of 42 occurrencesEoceneOligocene — about 17 of 42 occurrencesOligoceneMiocene — about 6 of 42 occurrencesMiocenePliocene — about 6 of 42 occurrencesPleistocene — about 12 of 42 occurrences49–47 Mya — about 0.1 occurrences47–46 Mya — about 0.2 occurrences46–44 Mya — about 0.2 occurrences44–42 Mya — about 0.2 occurrences42–41 Mya — about 0.2 occurrences34–33 Mya — about 3 occurrences33–31 Mya — about 3 occurrences31–29 Mya — about 3 occurrences29–28 Mya — about 3 occurrences28–26 Mya — about 2 occurrences26–25 Mya — about 1 occurrence25–23 Mya — about 1 occurrence23–21 Mya — about 0.6 occurrences21–20 Mya — about 0.6 occurrences20–18 Mya — about 0.6 occurrences18–16 Mya — about 0.6 occurrences16–15 Mya — about 0.4 occurrences15–13 Mya — about 0.3 occurrences13–11 Mya — about 0.2 occurrences11–9.8 Mya — about 0.7 occurrences9.8–8.2 Mya — about 0.7 occurrences8.2–6.5 Mya — about 0.7 occurrences6.5–4.9 Mya — about 1 occurrence4.9–3.3 Mya — about 4 occurrences3.3–1.6 Mya — about 5 occurrences1.6–0 Mya — about 9 occurrences41.03 Mya129 ka49 Mya0 Mya

42 occurrences of Pyxilla 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

42 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

2 formations

Pungo River — 35.40°N, 76.80°WKylan — 59.92°N, 164.78°E

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The named rock units Pyxilla has been recovered from, largest first. Drawn where the rock is now, not where it formed. 40 occurrences have no formation on record, which is common for older literature.

Pyxilla and its relatives

Oligocene

Where Pyxilla and its relatives were recorded in the Oligocene.

Found in the same rock

258 taxa

The Paleobiology Database records 42 sites for Pyxilla, 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

14 references

Each of the 42 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. 2 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 Pyxilla

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Pyxilla was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itPyxillaceae through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Greville 1865