Pleurosternidae

Pleurosternidae is an extinct family of freshwater turtles belonging to Paracryptodira. They are definitively known from the Late Jurassic to Early Cretaceous (Albian) of Western Europe and North America.

Pleurosternidae

Serjoscha W. Evers​, Yann Rollot, Walter G. Joyce · CC BY 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
ParacryptodiraPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Diapsida

Time the record covers

At least 81 million years on record.

The record covers at least 165.3 Mya to 83.6 Mya. No occurrence read is dated outside 168.2 Mya to 72.2 Mya.

Middle Jurassic — about 3 of 127 occurrencesMiddle JurassicLate Jurassic — about 78 of 127 occurrencesLate JurassicEarly Cretaceous — about 44 of 127 occurrencesEarly CretaceousLate Cretaceous — about 3 of 127 occurrencesLate Cretaceous170–167 Mya — about 1 occurrence167–163 Mya — about 2 occurrences157–153 Mya — about 5 occurrences153–150 Mya — about 15 occurrences150–147 Mya — about 27 occurrences147–143 Mya — about 28 occurrences143–140 Mya — about 13 occurrences140–137 Mya — about 14 occurrences137–134 Mya — about 2 occurrences134–130 Mya — about 1 occurrence130–127 Mya — about 1 occurrence127–124 Mya — about 4 occurrences124–120 Mya — about 3 occurrences120–117 Mya — about 2 occurrences117–114 Mya — about 2 occurrences114–110 Mya — about 2 occurrences110–107 Mya — about 0.3 occurrences107–104 Mya — about 0.7 occurrences104–100 Mya — about 0.8 occurrences87–84 Mya — about 1 occurrence84–80 Mya — about 0.6 occurrences80–77 Mya — about 0.6 occurrences77–74 Mya — about 0.6 occurrences74–70 Mya — about 0.2 occurrences165.3 Mya83.6 Mya170 Mya70 Mya

127 occurrences of Pleurosternidae 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

127 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

30 formations

Morrison — 40.42°N, 109.21°WMorrison — 41.91°N, 105.96°WMorrison — 38.54°N, 105.22°WMorrison — 41.88°N, 106.11°WMorrison — 41.88°N, 105.89°WMorrison — 41.99°N, 106.08°WMorrison — 38.58°N, 108.40°WMorrison — 40.53°N, 109.39°WMorrison — 44.18°N, 103.34°WMorrison — 40.44°N, 109.30°WMorrison — 39.17°N, 108.77°WMorrison — 41.95°N, 106.31°WMorrison — 42.16°N, 105.91°WMorrison — 42.04°N, 106.39°WMorrison — 40.50°N, 109.17°WMorrison — 44.02°N, 104.24°WMorrison — 39.32°N, 110.69°WMorrison — 35.20°N, 107.13°WMorrison — 42.02°N, 106.05°WMorrison — 44.46°N, 104.73°WMorrison — 39.15°N, 108.77°WMorrison — 39.01°N, 111.02°WMorrison — 44.25°N, 104.41°WMorrison — 36.92°N, 102.98°WMorrison — 40.30°N, 108.57°WDraney Limestone — 43.05°N, 111.16°WAntlers — 33.28°N, 97.62°WAntlers — 34.15°N, 95.82°WLulworth — 50.60°N, 1.97°WForest Marble — 51.87°N, 1.27°WForest Marble — 50.71°N, 2.78°WBlesa — 40.95°N, 0.77°WPraia da Amoreira-Porto Novo — 39.17°N, 9.35°WPraia da Amoreira-Porto Novo — 39.17°N, 9.20°WEl Castellar — 40.67°N, 0.67°WEl Castellar — 40.66°N, 0.87°WBückeberg — 52.26°N, 7.03°EMugher Mudstone — 9.45°N, 38.62°ECloverly — 44.69°N, 108.24°WLa Huérguina — 40.22°N, 1.98°WAlcobaça — 39.70°N, 8.80°WLourinhã — 39.23°N, 9.32°WWeald Clay — 52.72°N, 1.44°WWessex — 50.62°N, 1.34°WDurlston — 50.60°N, 1.97°WBlackleaf — 44.54°N, 112.60°WPortland Stone — 50.57°N, 2.45°WCamarillas — 40.64°N, 0.86°WMont-Lambert — 50.77°N, 1.63°EVillar del Arzobispo — 40.13°N, 1.13°WKilmaluag — 57.17°N, 6.11°WEscucha — 41.02°N, 0.57°W

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The named rock units Pleurosternidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 further formations hold fewer occurrences each and are not listed. 24 occurrences have no formation on record, which is common for older literature.

Pleurosternidae and its relatives

Late Jurassic

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

Found in the same rock

809 taxa

The Paleobiology Database records 99 sites for Pleurosternidae, 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

71 references

Each of the 127 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. 59 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 Pleurosternidae

Credit
Serjoscha W. Evers​, Yann Rollot, Walter G. Joyce
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Pleurosternidae 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.

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 itParacryptodira through timeFormations of the Late JurassicThe world it lived on

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