Jianchuania problematica

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

On record

Recorded, not inferred
Sits inside
JianchuaniaPBDB
Diet
suspension feederPBDB, for Pectinida
Life habit
epifaunalPBDB, for Pectinida
Motility
stationaryPBDB, for Oxytomidae
Vision
blindPBDB, for Bivalvia
Environment
marinePBDB, for Pectinida

Time the record covers

At least 42 million years on record.

The record covers at least 211.18 Mya to 168.2 Mya. No occurrence read is dated outside 227.3 Mya to 165.3 Mya.

Late Triassic — about 5 of 6 occurrencesLate TriassicEarly Jurassic — about 0 of 6 occurrencesMiddle Jurassic — about 1 of 6 occurrencesMiddle Jurassic229–226 Mya — about 0.2 occurrences226–224 Mya — about 0.4 occurrences224–222 Mya — about 0.4 occurrences222–220 Mya — about 0.4 occurrences220–218 Mya — about 0.4 occurrences218–216 Mya — about 0.4 occurrences216–213 Mya — about 0.8 occurrences213–211 Mya — about 0.9 occurrences211–209 Mya — about 0.4 occurrences209–207 Mya — about 0.4 occurrences207–205 Mya — about 0.2 occurrences168–166 Mya — about 0.7 occurrences166–164 Mya — about 0.3 occurrences211.18 Mya168.2 Mya229 Mya164 Mya

6 occurrences of Jianchuania problematica 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

6 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

Shizhongshan — 26.58°N, 99.68°EShizhongshan — 26.51°N, 99.72°EShizhongshan — 26.70°N, 99.42°EBuqu — 33.77°N, 91.33°EBaijizu — 26.43°N, 99.41°EWaluba — 25.45°N, 100.00°E

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

Jianchuania problematica and its relatives

Late Triassic

Where Jianchuania problematica and its relatives were recorded in the Late Triassic.

Found in the same rock

No other named taxon is catalogued from any of those sites.

The Paleobiology Database records 5 sites for Jianchuania problematica, and this reads all of them.

Entered from

2 references

Each of the 6 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 Jianchuania problematica 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 Jianchuania problematica, or no answer at all. This entry cannot say which.

No 3D scan of Jianchuania problematica 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 itJianchuania through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Chen 1976)