Cryptodira

The Cryptodira are a suborder of Testudines that includes most living tortoises and turtles. Cryptodira is commonly called the "Hidden-Neck Turtles" or the "Inside-Neck Turtles". Cryptodira differ from Pleurodira in that they lower their necks and pull the heads straight back into the shells, instead of folding their necks sideways along the body under the shells' marginals. They include among their species freshwater turtles, snapping turtles, tortoises, softshell turtles, and sea turtles.

Cryptodira

A.Savin · FAL · 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
TestudinesPBDB
Diet
omnivorePBDB
Life habit
aquaticPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
freshwaterPBDB

Time the record covers

At least 201 million years on record.

The record covers at least 201.4 Mya to 11.7 ka. No occurrence read is dated outside 205.7 Mya to 0 Mya.

Late Triassic — about 1 of 7030 occurrencesEarly Jurassic — about 2 of 7030 occurrencesEarly JurassicMiddle Jurassic — about 24 of 7030 occurrencesLate Jurassic — about 34 of 7030 occurrencesLate JurassicEarly Cretaceous — about 203 of 7030 occurrencesEarly CretaceousLate Cretaceous — about 1891 of 7030 occurrencesLate CretaceousPaleocene — about 374 of 7030 occurrencesEocene — about 1268 of 7030 occurrencesEoceneOligocene — about 288 of 7030 occurrencesMiocene — about 1499 of 7030 occurrencesMiocenePliocene — about 388 of 7030 occurrencesPleistocene — about 907 of 7030 occurrences210–203 Mya — about 0.7 occurrences203–196 Mya — about 0.6 occurrences196–189 Mya — about 0.5 occurrences189–182 Mya — about 0.7 occurrences182–175 Mya — about 1 occurrence175–168 Mya — about 4 occurrences168–161 Mya — about 22 occurrences161–154 Mya — about 17 occurrences154–147 Mya — about 10 occurrences147–140 Mya — about 11 occurrences140–133 Mya — about 20 occurrences133–126 Mya — about 11 occurrences126–119 Mya — about 72 occurrences119–112 Mya — about 39 occurrences112–105 Mya — about 29 occurrences105–98 Mya — about 75 occurrences98–91 Mya — about 127 occurrences91–84 Mya — about 119 occurrences84–77 Mya — about 490 occurrences77–70 Mya — about 620 occurrences70–63 Mya — about 663 occurrences63–56 Mya — about 202 occurrences56–49 Mya — about 469 occurrences49–42 Mya — about 387 occurrences42–35 Mya — about 358 occurrences35–28 Mya — about 207 occurrences28–21 Mya — about 222 occurrences21–14 Mya — about 609 occurrences14–7.0 Mya — about 648 occurrences7.0–0 Mya — about 1597 occurrences201.4 Mya11.7 ka210 Mya0 Mya

7,030 occurrences of Cryptodira on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group. 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

7,030 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

860 formations

Hell Creek — 47.80°N, 106.10°WHell Creek — 47.68°N, 106.43°WHell Creek — 45.95°N, 103.96°WHell Creek — 46.10°N, 103.30°WHell Creek — 46.03°N, 103.77°WHell Creek — 46.18°N, 103.84°WHell Creek — 46.41°N, 103.94°WHell Creek — 46.38°N, 103.96°WHell Creek — 46.46°N, 104.02°WHell Creek — 46.33°N, 103.90°WHell Creek — 45.94°N, 103.95°WHell Creek — 47.88°N, 106.20°WHell Creek — 47.55°N, 107.13°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.52°N, 106.98°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 47.58°N, 106.30°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.52°N, 107.18°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.53°N, 106.88°WHell Creek — 47.60°N, 107.23°WHell Creek — 46.90°N, 101.50°WHell Creek — 46.09°N, 100.63°WHell Creek — 47.61°N, 106.90°WHell Creek — 47.60°N, 107.00°WHell Creek — 45.38°N, 105.30°WHell Creek — 46.33°N, 104.01°WHell Creek — 46.37°N, 104.08°WHell Creek — 46.38°N, 104.43°WHell Creek — 46.23°N, 104.23°WHell Creek — 47.34°N, 108.22°WHell Creek — 46.70°N, 100.25°WHell Creek — 46.41°N, 103.50°WHell Creek — 47.70°N, 105.80°WHell Creek — 45.23°N, 103.21°WHell Creek — 47.27°N, 107.13°WHell Creek — 45.66°N, 105.08°WHell Creek — 45.89°N, 104.55°WHell Creek — 46.40°N, 103.42°WHell Creek — 46.30°N, 104.50°WHell Creek — 47.60°N, 106.20°WHell Creek — 45.59°N, 103.50°WHell Creek — 45.87°N, 103.79°WHell Creek — 45.53°N, 101.63°WHell Creek — 45.00°N, 103.19°WKirtland — 36.30°N, 108.55°WKirtland — 36.29°N, 108.23°WKirtland — 36.37°N, 108.57°WKirtland — 36.31°N, 108.08°WKirtland — 36.19°N, 107.89°WKirtland — 36.20°N, 108.10°WKirtland — 36.50°N, 108.08°WKirtland — 36.14°N, 108.11°WKirtland — 36.29°N, 108.54°WKirtland — 36.17°N, 107.80°WKirtland — 36.51°N, 108.32°WBridger — 42.37°N, 108.91°WBridger — 41.54°N, 109.80°WBridger — 41.13°N, 110.13°WBridger — 41.80°N, 110.70°WBridger — 41.28°N, 110.23°WBridger — 41.20°N, 110.50°WBridger — 41.60°N, 109.97°WBridger — 41.22°N, 109.72°WBridger — 41.70°N, 109.00°WBridger — 41.77°N, 110.33°WBridger — 41.84°N, 110.20°WBridger — 41.07°N, 110.00°WBridger — 41.08°N, 110.30°WBridger — 41.20°N, 110.10°WBridger — 41.32°N, 110.38°WBridger — 41.04°N, 110.23°WUinta — 40.10°N, 109.23°WUinta — 40.20°N, 109.90°WUinta — 40.06°N, 109.62°WUinta — 40.15°N, 109.25°WUinta — 40.37°N, 109.64°WUinta — 40.04°N, 109.28°WUinta — 40.04°N, 109.66°WUinta — 40.16°N, 109.32°WUinta — 40.15°N, 109.62°WUinta — 40.20°N, 110.44°WUinta — 40.15°N, 109.75°WDenver — 39.70°N, 104.70°WDenver — 38.80°N, 104.80°WDenver — 39.61°N, 105.02°WDenver — 39.91°N, 105.15°WDenver — 39.84°N, 105.04°WDenver — 39.95°N, 105.23°WDenver — 39.70°N, 105.20°WDenver — 39.75°N, 105.22°WDenver — 38.89°N, 104.60°WDenver — 39.30°N, 104.30°WDenver — 39.63°N, 104.33°WDenver — 39.50°N, 104.70°WDenver — 38.91°N, 104.53°WWillwood — 43.95°N, 107.57°WWillwood — 44.30°N, 109.00°WWillwood — 44.64°N, 108.53°WWillwood — 44.60°N, 108.32°WWillwood — 44.62°N, 108.45°WWillwood — 44.56°N, 108.70°WWillwood — 44.62°N, 108.81°WWillwood — 44.64°N, 108.86°WWillwood — 44.40°N, 108.72°WWillwood — 44.78°N, 108.97°WWillwood — 44.50°N, 108.00°WWillwood — 43.92°N, 107.58°WWillwood — 44.00°N, 108.00°WWillwood — 43.92°N, 108.66°WWillwood — 44.30°N, 108.07°WWillwood — 44.21°N, 108.48°WWillwood — 44.08°N, 108.22°WWillwood — 43.99°N, 107.72°WWillwood — 44.32°N, 108.76°WWillwood — 44.30°N, 108.20°WLance — 43.30°N, 104.37°WLance — 43.12°N, 104.64°WLance — 41.57°N, 108.67°WLance — 43.18°N, 104.53°WLance — 43.15°N, 104.57°WLance — 43.25°N, 104.65°WLance — 43.13°N, 104.49°WLance — 43.25°N, 104.52°WLance — 43.80°N, 104.62°WLance — 45.75°N, 101.20°WLance — 43.00°N, 104.50°WLance — 45.34°N, 103.72°WLance — 45.39°N, 103.70°WLance — 45.60°N, 103.63°WLance — 45.93°N, 103.92°WDinosaur Park — 49.12°N, 110.47°WDinosaur Park — 50.82°N, 111.57°WDinosaur Park — 50.75°N, 111.48°WDinosaur Park — 50.74°N, 111.49°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 50.78°N, 111.33°WDinosaur Park — 49.07°N, 110.45°WDinosaur Park — 50.72°N, 111.56°WDinosaur Park — 50.68°N, 108.09°WKaiparowits — 37.42°N, 111.79°WKaiparowits — 37.75°N, 111.61°WKaiparowits — 37.58°N, 111.94°WKaiparowits — 37.72°N, 111.78°WKaiparowits — 37.49°N, 112.17°WKaiparowits — 37.49°N, 111.72°WKaiparowits — 37.30°N, 112.43°WKaiparowits — 37.84°N, 111.28°WKaiparowits — 37.82°N, 111.40°WKaiparowits — 37.53°N, 111.76°WKaiparowits — 37.45°N, 111.53°WNemegt — 43.44°N, 100.37°ENemegt — 47.73°N, 104.92°ENemegt — 43.00°N, 99.00°ENemegt — 44.07°N, 102.67°ENemegt — 43.87°N, 100.01°ENemegt — 43.85°N, 100.14°ENemegt — 43.47°N, 99.83°ENemegt — 43.60°N, 100.50°ENemegt — 43.50°N, 101.05°ENemegt — 43.48°N, 100.36°ENemegt — 43.48°N, 100.46°ENemegt — 46.82°N, 94.15°ENemegt — 43.82°N, 99.98°ENemegt — 43.49°N, 101.28°ENemegt — 43.54°N, 99.60°ENemegt — 43.54°N, 99.22°ENemegt — 44.44°N, 109.86°ENemegt — 43.58°N, 107.69°ENemegt — 43.72°N, 99.93°ENemegt — 43.47°N, 100.62°ESan Jose — 35.70°N, 107.00°WSan Jose — 35.20°N, 106.60°WSan Jose — 36.50°N, 107.00°WSan Jose — 36.20°N, 107.67°WSan Jose — 36.14°N, 107.72°WBaynshire — 43.14°N, 107.52°EBaynshire — 44.48°N, 110.03°EBaynshire — 44.45°N, 107.38°EBaynshire — 44.27°N, 109.91°EBaynshire — 44.18°N, 102.79°EBaynshire — 44.41°N, 109.84°EBaynshire — 43.50°N, 107.76°EBaynshire — 43.56°N, 107.91°EBaynshire — 44.46°N, 109.40°EBaynshire — 44.35°N, 109.35°EBaynshire — 43.94°N, 101.33°EBaynshire — 44.36°N, 109.35°EBaynshire — 43.47°N, 99.83°EBaynshire — 43.75°N, 109.63°EFort Union — 44.91°N, 108.93°WFort Union — 44.72°N, 108.62°WFort Union — 43.85°N, 108.35°WFort Union — 44.30°N, 109.00°WFort Union — 46.05°N, 104.48°WFort Union — 46.10°N, 109.95°WFort Union — 45.20°N, 109.00°WFort Union — 44.72°N, 108.38°WFort Union — 46.33°N, 104.01°WFort Union — 47.60°N, 107.00°WFort Union — 47.70°N, 105.80°WFort Union — 47.80°N, 106.10°WFort Union — 45.40°N, 105.50°WFort Union — 45.90°N, 104.13°WFort Union — 41.60°N, 108.60°WFort Union — 39.27°N, 108.18°WFort Union — 39.20°N, 108.20°WFort Union — 39.10°N, 106.90°WFort Union — 46.23°N, 109.81°WKhodzhakul — 40.60°N, 71.83°EKhodzhakul — 40.10°N, 67.00°EKhodzhakul — 40.10°N, 65.80°EKhodzhakul — 41.97°N, 61.07°EKhodzhakul — 42.37°N, 60.03°ECalvert — 38.17°N, 76.87°WCalvert — 38.54°N, 76.73°WCalvert — 37.93°N, 77.51°WCalvert — 38.17°N, 76.85°WCalvert — 38.53°N, 76.52°WCalvert — 37.77°N, 77.28°WCalvert — 37.78°N, 77.52°WCalvert — 38.57°N, 76.52°WCalvert — 38.65°N, 76.53°WCalvert — 39.20°N, 75.60°WCalvert — 38.40°N, 76.50°WCalvert — 38.18°N, 76.97°WCalvert — 38.38°N, 76.99°WKoobi Fora — 3.90°N, 36.24°EKoobi Fora — 3.98°N, 36.32°EKoobi Fora — 4.26°N, 36.28°EKoobi Fora — 4.24°N, 36.26°EKoobi Fora — 4.29°N, 36.23°EKoobi Fora — 3.77°N, 36.44°EKoobi Fora — 3.78°N, 36.33°EKoobi Fora — 3.59°N, 36.24°EKoobi Fora — 3.87°N, 36.37°EKoobi Fora — 3.94°N, 36.25°EKoobi Fora — 4.18°N, 36.42°EKoobi Fora — 4.42°N, 36.25°EOldman — 50.75°N, 111.51°WOldman — 49.10°N, 110.94°WOldman — 49.08°N, 110.84°WOldman — 49.08°N, 110.68°WOldman — 49.16°N, 110.72°WOldman — 50.83°N, 111.32°WOldman — 49.78°N, 113.32°WOldman — 50.73°N, 111.80°WFerris — 41.94°N, 106.88°WFerris — 41.80°N, 107.00°WFerris — 41.95°N, 106.89°WTudela — 42.07°N, 1.61°WTudela — 42.12°N, 1.51°WFruitland — 36.29°N, 108.23°WFruitland — 36.49°N, 108.49°WFruitland — 36.27°N, 108.26°WFruitland — 36.10°N, 108.08°WFruitland — 36.12°N, 107.78°WFruitland — 36.29°N, 108.55°WFruitland — 36.31°N, 108.08°WValentine — 42.78°N, 100.03°WValentine — 42.80°N, 100.80°WValentine — 42.79°N, 100.07°WValentine — 40.02°N, 98.53°WValentine — 42.60°N, 98.00°WValentine — 42.70°N, 100.00°WAguja — 29.32°N, 103.52°WAguja — 29.20°N, 103.55°WAguja — 29.29°N, 103.61°WWasatch — 42.37°N, 108.91°WWasatch — 41.80°N, 110.70°WWasatch — 41.20°N, 110.50°WWasatch — 42.07°N, 109.10°WWasatch — 42.24°N, 110.19°WWasatch — 42.76°N, 109.92°WWasatch — 41.64°N, 108.53°WWasatch — 42.70°N, 110.10°WWasatch — 41.70°N, 109.00°WUpper Freshwater Molasse — 48.15°N, 9.88°EUpper Freshwater Molasse — 48.44°N, 11.04°EUpper Freshwater Molasse — 48.66°N, 10.23°EUpper Freshwater Molasse — 48.09°N, 10.03°EUpper Freshwater Molasse — 48.63°N, 11.80°EUpper Freshwater Molasse — 48.57°N, 12.00°EUpper Freshwater Molasse — 47.67°N, 8.93°EUpper Freshwater Molasse — 47.92°N, 10.59°EUpper Freshwater Molasse — 48.16°N, 10.11°E

Loading coastlines…

The named rock units Cryptodira has been recovered from, largest first. Drawn where the rock is now, not where it formed. 836 further formations hold fewer occurrences each and are not listed. 2,326 occurrences have no formation on record, which is common for older literature.

Cryptodira and its relatives

Late Cretaceous

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

Found in the same rock

3,324 taxa

The Paleobiology Database records at least 1,095 sites for Cryptodira, and this reads 240 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

1,859 references

Each of the 7,030 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. 1,847 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 Cryptodira

Credit
A.Savin
Licence
FAL
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 itTestudines through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1868)