Trigonodus

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

On record

Recorded, not inferred
Sits inside
TrigonodidaePBDB
Diet
suspension feederPBDB, for Trigoniida
Life habit
infaunalPBDB, for Trigoniida
Motility
facultatively mobilePBDB, for Trigoniida
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 262 million years on record.

The record covers at least 468 Mya to 205.7 Mya. No occurrence read is dated outside 477.1 Mya to 201.4 Mya.

Ordovician — about 2 of 162 occurrencesOrdovicianSilurian — about 0 of 162 occurrencesDevonian — about 0 of 162 occurrencesCarboniferous — about 0 of 162 occurrencesPermian — about 0 of 162 occurrencesEarly Triassic — about 15 of 162 occurrencesMiddle Triassic — about 68 of 162 occurrencesLate Triassic — about 77 of 162 occurrencesLate TriassicEarly Jurassic — about 0 of 162 occurrences483–473 Mya — about 0.9 occurrences473–463 Mya — about 1 occurrence253–244 Mya — about 27 occurrences244–234 Mya — about 107 occurrences234–225 Mya — about 22 occurrences225–215 Mya — about 2 occurrences215–205 Mya — about 2 occurrences205–196 Mya — about 1 occurrence468 Mya205.7 Mya483 Mya196 Mya

162 occurrences of Trigonodus 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

162 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

26 formations

Schlern — 46.51°N, 11.57°ENa Khuat — 21.75°N, 106.50°ENa Khuat — 21.80°N, 106.79°ECassian — 46.54°N, 11.62°ECassian — 46.68°N, 12.15°ECassian — 46.51°N, 11.76°EMoenkopi — 37.13°N, 113.76°WMoenkopi — 37.06°N, 113.69°WMoenkopi — 37.11°N, 113.25°WMoenkopi — 37.13°N, 113.23°WQuy Lang — 19.50°N, 105.00°EQuy Lang — 19.48°N, 105.41°EStuttgart — 49.20°N, 9.30°EGorno — 45.87°N, 9.87°EGoulushankeco — 34.67°N, 92.50°ERaibl — 46.51°N, 11.58°EMuong Trai — 21.50°N, 104.00°ESang Phou — 20.50°N, 104.00°EShanglan — 26.54°N, 99.58°EVirgin — 37.05°N, 113.68°WNora — 23.31°S, 138.62°ESabudani — 33.75°N, 134.33°EDoi Long — 18.25°N, 100.00°EPha Daeng — 18.33°N, 100.92°EClastic carbonate — 45.25°N, 46.50°EWetterstein Limestone — 48.00°N, 20.00°ESándorhegy — 46.98°N, 17.88°EFődolomit — 47.11°N, 17.91°EZhitkov — 42.93°N, 132.43°EYeba — 30.35°N, 92.92°EMarmolata — 46.45°N, 11.87°E

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The named rock units Trigonodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 further formations hold fewer occurrences each and are not listed. 58 occurrences have no formation on record, which is common for older literature.

Trigonodus and its relatives

Late Triassic

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

Found in the same rock

695 taxa

The Paleobiology Database records 72 sites for Trigonodus, 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

33 references

Each of the 162 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. 21 further references are not listed. 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

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Pelycodus trigonodus · UMMP:VP:81822

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

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

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Alberti 1864