Xinjiangchelyidae

Xinjiangchelyidae is an extinct family of turtles known from the Lower Jurassic to the Middle Cretaceous of Asia and western Europe. They have generally been interpreted as either being basal cryptodires or placed outside of crown Testudines.

Xinjiangchelyidae

Rabi et al. · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.

On record

Recorded, not inferred
Sits inside
EucryptodiraPBDB
Diet
omnivorePBDB, for Cryptodira
Life habit
aquaticPBDB, for Cryptodira
Motility
actively mobilePBDB, for Osteichthyes
Environment
freshwaterPBDB, for Cryptodira

Time the record covers

At least 49 million years on record.

The record covers at least 170.9 Mya to 121.4 Mya. No occurrence read is dated outside 184.2 Mya to 100.5 Mya.

Early Jurassic — about 1 of 61 occurrencesEarly JurassicMiddle Jurassic — about 14 of 61 occurrencesMiddle JurassicLate Jurassic — about 25 of 61 occurrencesLate JurassicEarly Cretaceous — about 20 of 61 occurrencesEarly CretaceousLate Cretaceous — about 0 of 61 occurrences186–183 Mya — about 0.2 occurrences183–180 Mya — about 0.4 occurrences180–177 Mya — about 0.4 occurrences177–174 Mya — about 0.4 occurrences174–171 Mya — about 0.4 occurrences171–168 Mya — about 1 occurrence168–166 Mya — about 3 occurrences166–163 Mya — about 7 occurrences163–160 Mya — about 6 occurrences160–157 Mya — about 6 occurrences157–154 Mya — about 6 occurrences154–151 Mya — about 2 occurrences151–148 Mya — about 2 occurrences148–145 Mya — about 3 occurrences145–142 Mya — about 2 occurrences142–139 Mya — about 0.9 occurrences139–137 Mya — about 1.0 occurrences137–134 Mya — about 1 occurrence134–131 Mya — about 1 occurrence131–128 Mya — about 1 occurrence128–125 Mya — about 2 occurrences125–122 Mya — about 6 occurrences122–119 Mya — about 3 occurrences119–116 Mya — about 0.6 occurrences116–113 Mya — about 0.6 occurrences113–110 Mya — about 0.6 occurrences110–108 Mya — about 0.6 occurrences108–105 Mya — about 0.6 occurrences105–102 Mya — about 0.6 occurrences102–99 Mya — about 0.2 occurrences170.9 Mya121.4 Mya186 Mya99 Mya

61 occurrences of Xinjiangchelyidae on record, most of them in the Late Jurassic. 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

61 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

21 formations

Shishugou — 45.13°N, 88.95°EShishugou — 43.79°N, 87.63°EShishugou — 45.17°N, 88.92°EBalabansai — 41.34°N, 72.23°EShaximiao — 30.12°N, 104.65°EShaximiao — 29.41°N, 104.85°EShaximiao — 29.56°N, 106.55°EShaximiao — 29.41°N, 104.77°EQigu — 42.96°N, 90.49°EQigu — 43.55°N, 87.26°EQigu — 43.79°N, 87.55°EQigu — 42.94°N, 90.50°EItsuki — 35.97°N, 136.60°EItsuki — 35.94°N, 136.62°EItsuki — 35.90°N, 136.79°EVectis — 50.62°N, 1.40°WVectis — 50.66°N, 1.14°WLianmuqin — 46.04°N, 85.79°ELianmuqin — 46.10°N, 85.67°EUlan Malgait — 44.07°N, 95.81°EPhu Kradung — 16.65°N, 102.25°EToutunhe — 43.55°N, 87.26°EItat — 55.65°N, 89.18°EShar Teg — 44.12°N, 95.82°EEl Castellar — 40.66°N, 0.87°WEl Castellar — 40.67°N, 0.67°WXintiangou — 30.93°N, 108.73°EArcillas de Morella — 40.49°N, 0.42°EChuanjie — 24.97°N, 102.08°EKarabastau — 42.90°N, 70.00°EGrès supérieurs — 16.40°N, 105.68°EWadhurst Clay — 50.86°N, 0.60°ECamarillas — 40.67°N, 0.67°WTiaojishan — 40.48°N, 119.37°E

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The named rock units Xinjiangchelyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Xinjiangchelyidae and its relatives

Late Jurassic

Where Xinjiangchelyidae and its relatives were recorded in the Late Jurassic.

Found in the same rock

251 taxa

The Paleobiology Database records 45 sites for Xinjiangchelyidae, 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

42 references

Each of the 61 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. 30 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

Picture of Xinjiangchelyidae

Credit
Rabi et al.
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itEucryptodira through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Nessov 1990)