Quadratonucula

No picture of Quadratonucula was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Quadratonucula, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
MalletiidaePBDB
Diet
deposit feederPBDB, for Nuculanoidea
Life habit
infaunalPBDB, for Nuculanoidea
Motility
facultatively mobilePBDB, for Nuculanoidea
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 42 million years on record.

The record covers at least 307 Mya to 264.28 Mya. No occurrence read is dated outside 323.4 Mya to 259.857 Mya.

Carboniferous — about 3 of 12 occurrencesCarboniferousPermian — about 9 of 12 occurrencesPermian325–322 Mya — about 0.2 occurrences322–320 Mya — about 0.4 occurrences320–318 Mya — about 0.4 occurrences318–316 Mya — about 0.4 occurrences316–314 Mya — about 0.4 occurrences314–311 Mya — about 0.4 occurrences311–309 Mya — about 0.4 occurrences309–307 Mya — about 0.4 occurrences307–305 Mya — about 0.1 occurrences305–303 Mya — about 0.1 occurrences303–300 Mya — about 0.1 occurrences300–298 Mya — about 0.1 occurrences294–292 Mya — about 2 occurrences292–289 Mya — about 1 occurrence289–287 Mya — about 0.3 occurrences287–285 Mya — about 0.3 occurrences285–283 Mya — about 0.3 occurrences267–265 Mya — about 2 occurrences265–263 Mya — about 2 occurrences263–261 Mya — about 1.0 occurrences261–259 Mya — about 0.4 occurrences307 Mya264.28 Mya325 Mya259 Mya

12 occurrences of Quadratonucula on record, most of them in the Permian. 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

12 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

5 formations

Mangarewa — 45.80°S, 167.96°EFossil Cliff — 28.79°S, 115.50°EFossil Cliff — 28.90°S, 115.55°EFossil Cliff — 28.90°S, 115.53°EMojon de Hierro — 43.50°S, 70.75°WMojon de Hierro — 43.72°S, 70.68°WRiepetown — 39.64°N, 115.59°WTolo Harbour — 22.46°N, 114.23°E

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The named rock units Quadratonucula 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.

Quadratonucula and its relatives

Permian

Where Quadratonucula and its relatives were recorded in the Permian.

Found in the same rock

144 taxa

The Paleobiology Database records 12 sites for Quadratonucula, 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

8 references

Each of the 12 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 Quadratonucula was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

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

No 3D scan of Quadratonucula 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 itMalletiidae through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dickins 1963