Trigonucula

No picture of Trigonucula was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Trigonucula, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
NuculidaePBDB
Diet
deposit feeder, suspension feederPBDB, for Nuculidae
Life habit
infaunalPBDB, for Nuculidae
Motility
facultatively mobilePBDB, for Nuculidae
Vision
blindPBDB, for Bivalvia
Environment
coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculidae

Time the record covers

At least 42 million years on record.

The record covers at least 248.6 Mya to 205.7 Mya. No occurrence read is dated outside 250.8 Mya to 201.4 Mya.

Early Triassic — about 1 of 11 occurrencesEarly TriassicMiddle Triassic — about 0 of 11 occurrencesLate Triassic — about 10 of 11 occurrencesLate TriassicEarly Jurassic — about 0 of 11 occurrences252–250 Mya — about 0.3 occurrences250–248 Mya — about 0.7 occurrences238–236 Mya — about 0.2 occurrences236–235 Mya — about 0.5 occurrences235–233 Mya — about 0.5 occurrences233–231 Mya — about 0.5 occurrences231–230 Mya — about 0.5 occurrences230–228 Mya — about 0.5 occurrences228–226 Mya — about 0.2 occurrences226–224 Mya — about 0.1 occurrences224–223 Mya — about 0.1 occurrences223–221 Mya — about 0.1 occurrences221–219 Mya — about 0.1 occurrences219–218 Mya — about 0.1 occurrences218–216 Mya — about 0.1 occurrences216–214 Mya — about 0.4 occurrences214–212 Mya — about 0.5 occurrences212–211 Mya — about 0.5 occurrences211–209 Mya — about 0.4 occurrences209–207 Mya — about 0.4 occurrences207–206 Mya — about 0.5 occurrences206–204 Mya — about 2 occurrences204–202 Mya — about 2 occurrences202–200 Mya — about 0.7 occurrences248.6 Mya205.7 Mya252 Mya200 Mya

11 occurrences of Trigonucula on record, most of them in the Late Triassic. 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

11 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

4 formations

Nayband — 32.50°N, 57.35°ENayband — 32.38°N, 57.50°ENayband — 33.34°N, 51.91°ESabudani — 35.72°N, 139.22°ESabudani — 33.50°N, 133.27°ESabudani — 33.75°N, 134.33°EKockatea Shale — 29.00°S, 115.00°ELuning — 38.88°N, 117.58°W

Loading coastlines…

The named rock units Trigonucula has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Trigonucula and its relatives

Late Triassic

Where Trigonucula and its relatives were recorded in the Late Triassic.

Found in the same rock

107 taxa

The Paleobiology Database records 11 sites for Trigonucula, 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

5 references

Each of the 11 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 Trigonucula was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Trigonucula, or no answer at all. This entry cannot say which.

No 3D scan of Trigonucula 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itNuculidae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ichikawa 1949