Triadocidaris

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

On record

Recorded, not inferred
Sits inside
TriadocidaridaePBDB
Diet
grazer, deposit feederPBDB, for Echinoidea
Life habit
epifaunalPBDB, for Echinoidea
Motility
actively mobilePBDB, for Echinoidea
Vision
limitedPBDB, for Echinoidea
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 35 million years on record.

The record covers at least 241.464 Mya to 205.7 Mya. No occurrence read is dated outside 251.902 Mya to 201.4 Mya.

Permian — about 0 of 29 occurrencesEarly Triassic — about 0 of 29 occurrencesEarly TriassicMiddle Triassic — about 12 of 29 occurrencesMiddle TriassicLate Triassic — about 17 of 29 occurrencesLate TriassicEarly Jurassic — about 0 of 29 occurrences253–251 Mya — about 0.0 occurrences251–249 Mya — about 0.0 occurrences249–248 Mya — about 0.0 occurrences248–246 Mya — about 0.6 occurrences246–244 Mya — about 1 occurrence244–242 Mya — about 6 occurrences242–241 Mya — about 4 occurrences241–239 Mya — about 0.0 occurrences239–237 Mya — about 0.0 occurrences237–235 Mya — about 3 occurrences235–234 Mya — about 4 occurrences234–232 Mya — about 2 occurrences232–230 Mya — about 2 occurrences230–228 Mya — about 2 occurrences228–227 Mya — about 1 occurrence227–225 Mya — about 0.2 occurrences225–223 Mya — about 0.2 occurrences223–221 Mya — about 0.2 occurrences221–220 Mya — about 0.2 occurrences220–218 Mya — about 0.2 occurrences218–216 Mya — about 0.2 occurrences216–214 Mya — about 0.2 occurrences214–213 Mya — about 0.2 occurrences213–211 Mya — about 0.2 occurrences211–209 Mya — about 0.2 occurrences209–207 Mya — about 0.2 occurrences207–206 Mya — about 0.2 occurrences206–204 Mya — about 0.5 occurrences204–202 Mya — about 0.5 occurrences202–200 Mya — about 0.2 occurrences241.464 Mya205.7 Mya253 Mya200 Mya

29 occurrences of Triadocidaris 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

29 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

7 formations

San Salvatore — 45.87°N, 8.81°EQingyan — 26.33°N, 106.68°ECassian — 46.55°N, 11.93°EPelsonian-Lower Illyrian — 48.47°N, 20.52°EParson Bay — 48.86°N, 124.23°WWellenkalk — 50.30°N, 18.97°EMartin Bridge — 46.29°N, 116.69°W

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The named rock units Triadocidaris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.

Triadocidaris and its relatives

Late Triassic

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

Found in the same rock

657 taxa

The Paleobiology Database records 17 sites for Triadocidaris, 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

12 references

Each of the 29 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 Triadocidaris 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 Triadocidaris, or no answer at all. This entry cannot say which.

No 3D scan of Triadocidaris 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 itTriadocidaridae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Döderlein 1887