Trionyx kansaiensis

Trionyx kansaiensis is an extinct species of softshell turtle uncovered from the Late Cretaceous of Tajikistan and Qyzylorda, Kazakhstan.Fossil evidence from the Bissekty Formation in Uzbekistan indicate that the Trionyx Kansaiensis or a closely related species were more widely spread across Central Asia during the Late Cretaceous than research previously showed. Other fossils from the Bostobe Formation suggest that this species lived in river and delta environments. T. Kansaiensis’ shell anatomy shows intermediate traits between very early and modern day trionychids, suggesting that it came along somewhere in the middle of the evolutionary history of the species.

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

On record

Recorded, not inferred
Sits inside
TrionyxPBDB
Diet
piscivore, carnivorePBDB, for Trionychidae
Life habit
aquatic, solitaryPBDB, for Trionychidae
Motility
actively mobilePBDB, for Trionychidae
Environment
brackish,freshwaterPBDB, for Trionychidae

Time the record covers

At least 4.1 million years on record.

The record covers at least 89.8 Mya to 85.7 Mya. No occurrence read is dated outside 93.9 Mya to 72.2 Mya.

Late Cretaceous — about 6 of 6 occurrencesLate Cretaceous94–94 Mya — about 0.1 occurrences94–93 Mya — about 0.2 occurrences93–92 Mya — about 0.2 occurrences92–91 Mya — about 0.2 occurrences91–91 Mya — about 0.2 occurrences91–90 Mya — about 0.2 occurrences90–89 Mya — about 0.0 occurrences86–85 Mya — about 0.6 occurrences85–85 Mya — about 1 occurrence85–84 Mya — about 1 occurrence84–83 Mya — about 0.4 occurrences83–82 Mya — about 0.1 occurrences82–82 Mya — about 0.1 occurrences82–81 Mya — about 0.1 occurrences81–80 Mya — about 0.1 occurrences80–79 Mya — about 0.1 occurrences79–79 Mya — about 0.1 occurrences79–78 Mya — about 0.1 occurrences78–77 Mya — about 0.1 occurrences77–76 Mya — about 0.1 occurrences76–75 Mya — about 0.1 occurrences75–75 Mya — about 0.1 occurrences75–74 Mya — about 0.1 occurrences74–73 Mya — about 0.1 occurrences73–72 Mya — about 0.1 occurrences72–72 Mya — about 0.0 occurrences89.8 Mya85.7 Mya94.4 Mya71.7 Mya

6 occurrences of Trionyx kansaiensis 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

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

Bostobe — 45.95°N, 64.65°EBostobe — 46.57°N, 63.87°ESyuksyuk — 42.76°N, 68.54°EYalovach — 40.49°N, 69.70°EBissekty — 42.12°N, 62.66°E

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

Trionyx kansaiensis and its relatives

Late Cretaceous

Where Trionyx kansaiensis and its relatives were recorded in the Late Cretaceous.

Found in the same rock

62 taxa

The Paleobiology Database records 5 sites for Trionyx kansaiensis, 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

4 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

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

No 3D scan of Trionyx kansaiensis 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.

The description on this site

Licence
CC BY-SA 4.0

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

Keep going

What may have been alongside itTrionyx through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Vitek and Danilov 2010