Quadricarina

Quadricarina

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
PorcelliidaePBDB
Diet
detritivorePBDB, for Eotomarioidea
Life habit
epifaunalPBDB, for Eotomarioidea
Motility
slow-movingPBDB, for Eotomarioidea
Vision
limitedPBDB, for Eotomarioidea
Environment
coastal,marinePBDB, for Murchisoniina

Time the record covers

At least 42 million years on record.

The record covers at least 430.6 Mya to 387.95 Mya. No occurrence read is dated outside 432.9 Mya to 382.31 Mya.

Silurian — about 7 of 21 occurrencesSilurianDevonian — about 14 of 21 occurrencesDevonian434–432 Mya — about 0.6 occurrences432–430 Mya — about 1 occurrence427–425 Mya — about 2 occurrences425–423 Mya — about 0.2 occurrences423–422 Mya — about 1 occurrence422–420 Mya — about 2 occurrences420–418 Mya — about 0.3 occurrences415–413 Mya — about 0.4 occurrences413–411 Mya — about 4 occurrences411–409 Mya — about 1 occurrence409–408 Mya — about 0.3 occurrences408–406 Mya — about 0.3 occurrences406–404 Mya — about 0.3 occurrences404–402 Mya — about 0.3 occurrences402–401 Mya — about 0.3 occurrences401–399 Mya — about 0.2 occurrences399–397 Mya — about 0.1 occurrences397–395 Mya — about 0.1 occurrences395–394 Mya — about 0.1 occurrences394–392 Mya — about 1 occurrence392–390 Mya — about 1 occurrence390–388 Mya — about 1 occurrence388–387 Mya — about 0.8 occurrences387–385 Mya — about 0.6 occurrences385–383 Mya — about 0.6 occurrences383–381 Mya — about 0.3 occurrences430.6 Mya387.95 Mya434 Mya381 Mya

21 occurrences of Quadricarina on record, most of them in the Devonian. 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

21 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

13 formations

Denay Limestone — 39.98°N, 116.27°WDenay Limestone — 39.55°N, 116.28°WPraha — 49.92°N, 14.08°EHemse Beds — 57.28°N, 18.32°EPozáry — 50.00°N, 14.34°EUpper Visby — 57.50°N, 18.55°EPetropavlovsk Suite — 60.15°N, 59.96°ECürten — 50.40°N, 8.18°EMassenkalk — 50.62°N, 8.56°ETaemas — 34.83°S, 148.92°ELimestone Mountain — 63.27°N, 154.55°WKess-Kess — 30.95°N, 4.05°WSlite Beds — 57.75°N, 18.73°EGrande Greve — 48.81°N, 64.25°W

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The named rock units Quadricarina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Quadricarina and its relatives

Devonian

Where Quadricarina and its relatives were recorded in the Devonian.

Found in the same rock

579 taxa

The Paleobiology Database records 15 sites for Quadricarina, 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

11 references

Each of the 21 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 Quadricarina

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 itPorcelliidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Blodgett and Johnson 1992