Quadratia

No picture of Quadratia was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Quadratia itself, so it was not used. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Quadratia, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
QuadratiinaePBDB
Diet
suspension feederPBDB, for Strophalosiidina
Life habit
low-level epifaunalPBDB, for Strophalosiidina
Motility
stationary, attachedPBDB, for Strophalosiidina
Vision
blindPBDB, for Strophomenata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 107 million years on record.

The record covers at least 351.9 Mya to 244.4 Mya. No occurrence read is dated outside 358.86 Mya to 237 Mya.

Devonian — about 0 of 40 occurrencesCarboniferous — about 26 of 40 occurrencesCarboniferousPermian — about 0 of 40 occurrencesEarly Triassic — about 0 of 40 occurrencesMiddle Triassic — about 14 of 40 occurrencesLate Triassic — about 0 of 40 occurrences361–357 Mya — about 0.9 occurrences357–353 Mya — about 2 occurrences353–349 Mya — about 2 occurrences349–344 Mya — about 6 occurrences344–340 Mya — about 11 occurrences340–336 Mya — about 3 occurrences336–332 Mya — about 0.5 occurrences332–328 Mya — about 0.1 occurrences247–243 Mya — about 8 occurrences243–239 Mya — about 6 occurrences239–235 Mya — about 0.2 occurrences351.9 Mya244.4 Mya361 Mya235 Mya

40 occurrences of Quadratia on record, most of them in the Carboniferous. 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

40 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

Fort Payne Chert — 36.92°N, 84.96°WFort Payne Chert — 36.54°N, 85.16°WFort Payne Chert — 36.72°N, 85.45°WQingyan — 26.33°N, 106.68°EQingyan — 26.92°N, 108.73°EQingyan — 26.35°N, 106.70°ELittle Flat — 43.83°N, 111.75°WChappel Limestone — 31.06°N, 99.30°WDeseret Limestone — 39.90°N, 113.71°WGlen Park — 38.32°N, 90.38°WNamoi — 31.03°S, 150.57°EDiamond Peak — 39.54°N, 115.83°W

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

Quadratia and its relatives

Carboniferous

Where Quadratia and its relatives were recorded in the Carboniferous.

Found in the same rock

416 taxa

The Paleobiology Database records 40 sites for Quadratia, 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 40 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 content0

No picture of Quadratia was found. Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

Wikipedia has a picture filed under this name, but nothing tied it to Quadratia itself, so it was not used.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Quadratia, or no answer at all. This entry cannot say which.

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 itQuadratiinae through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Muir-Wood and Cooper 1960