Trochacanthus

No picture of Trochacanthus 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 Trochacanthus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
NododelphinulidaePBDB
Diet
grazerPBDB, for Trochoidea
Life habit
epifaunalPBDB, for Trochoidea
Motility
actively mobilePBDB, for Trochoidea
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 96 million years on record.

The record covers at least 168.2 Mya to 72.2 Mya. No occurrence read is dated outside 170.9 Mya to 66 Mya.

Middle Jurassic — about 1 of 16 occurrencesMiddle JurassicLate Jurassic — about 0 of 16 occurrencesEarly Cretaceous — about 0 of 16 occurrencesLate Cretaceous — about 15 of 16 occurrencesLate CretaceousPaleocene — about 0 of 16 occurrences173–169 Mya — about 0.6 occurrences169–166 Mya — about 0.4 occurrences86–82 Mya — about 1 occurrence82–78 Mya — about 0.6 occurrences78–75 Mya — about 0.6 occurrences75–71 Mya — about 2 occurrences71–68 Mya — about 7 occurrences68–64 Mya — about 3 occurrences168.2 Mya72.2 Mya173 Mya64 Mya

16 occurrences of Trochacanthus on record, most of them in the Late Cretaceous. 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

16 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

3 formations

opoka — 51.32°N, 21.95°Eopoka — 51.10°N, 21.80°Eopoka — 51.00°N, 21.78°Emarly chalk — 51.28°N, 21.90°EHierlatz Limestone — 47.25°N, 17.77°E

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The named rock units Trochacanthus 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.

Trochacanthus and its relatives

Late Cretaceous

Where Trochacanthus and its relatives were recorded in the Late Cretaceous.

Found in the same rock

165 taxa

The Paleobiology Database records 7 sites for Trochacanthus, 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

3 references

Each of the 16 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 Trochacanthus 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 Trochacanthus, or no answer at all. This entry cannot say which.

No 3D scan of Trochacanthus 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 itNododelphinulidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dacqué 1936