Emydidae

Emydidae is a family of testudines (turtles) that includes close to 50 species in 10 genera. Members of this family are commonly called terrapins, pond turtles, or marsh turtles. Several species of Asian box turtles were formerly classified in the family; however, revised taxonomy has separated them to a different family (Geoemydidae). As currently defined, the Emydidae are entirely a Western Hemisphere family, with the exception of two species of pond turtle.

Emydidae

M. Noth · CC BY 1.0 · 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
TestudinoideaPBDB
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 576 occurrencesEarly Jurassic — about 0 of 576 occurrencesMiddle Jurassic — about 0 of 576 occurrencesLate Jurassic — about 0 of 576 occurrencesEarly Cretaceous — about 0 of 576 occurrencesLate Cretaceous — about 8 of 576 occurrencesLate CretaceousPaleocene — about 26 of 576 occurrencesEocene — about 39 of 576 occurrencesEoceneOligocene — about 14 of 576 occurrencesMiocene — about 148 of 576 occurrencesMiocenePliocene — about 53 of 576 occurrencesPleistocene — about 264 of 576 occurrences210–203 Mya — about 0.7 occurrences203–196 Mya — about 0.3 occurrences105–98 Mya — about 0.4 occurrences98–91 Mya — about 0.6 occurrences77–70 Mya — about 3 occurrences70–63 Mya — about 5 occurrences63–56 Mya — about 25 occurrences56–49 Mya — about 10 occurrences49–42 Mya — about 7 occurrences42–35 Mya — about 17 occurrences35–28 Mya — about 12 occurrences28–21 Mya — about 11 occurrences21–14 Mya — about 47 occurrences14–7.0 Mya — about 79 occurrences7.0–0 Mya — about 358 occurrences201.4 Mya11.7 ka210 Mya0 Mya

576 occurrences of Emydidae on record, most of them in the Pleistocene. 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

576 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

113 formations

Valentine — 42.78°N, 100.03°WValentine — 42.79°N, 100.07°WValentine — 40.02°N, 98.53°WValentine — 42.80°N, 100.80°WValentine — 42.60°N, 98.00°WAlachua — 29.10°N, 82.30°WAlachua — 29.70°N, 82.60°WAlachua — 29.55°N, 82.52°WAlachua — 29.40°N, 82.60°WAlachua — 29.65°N, 82.60°WXiacaowan — 33.45°N, 118.20°EKingsdown — 37.20°N, 100.30°WKingsdown — 37.05°N, 100.50°WBridger — 42.37°N, 108.91°WBridger — 41.20°N, 110.50°WBridger — 41.32°N, 110.38°WBridger — 41.04°N, 110.23°WOgallala — 39.08°N, 99.75°WOgallala — 35.79°N, 99.61°WOgallala — 35.77°N, 99.66°WWillwood — 44.60°N, 108.32°WWillwood — 44.62°N, 108.48°WWillwood — 44.30°N, 109.00°WWillwood — 44.30°N, 108.20°WLance — 43.12°N, 104.64°WLance — 43.18°N, 104.53°WLance — 43.13°N, 104.49°WLance — 43.15°N, 104.57°WFort Union — 44.30°N, 109.00°WGoliad — 28.60°N, 97.70°WGoliad — 28.34°N, 97.96°WHeadon Beds — 50.72°N, 1.59°WAsh Hollow — 42.60°N, 98.00°WAsh Hollow — 42.80°N, 100.80°WAsh Hollow — 42.30°N, 98.00°WPalos Verdes Sand — 33.76°N, 118.29°WPalos Verdes Sand — 34.00°N, 118.20°WPalos Verdes Sand — 33.66°N, 117.90°WBermont — 27.70°N, 82.50°WLong Pine — 42.38°N, 98.23°WTamiami — 27.37°N, 82.45°WTamiami — 27.78°N, 82.68°W"unnamed sandstone" — 33.90°N, 117.00°WFort Thompson — 27.80°N, 82.80°WSilver Bluff — 32.56°N, 80.29°WTorreya — 30.30°N, 84.20°WTorreya — 30.50°N, 84.50°WChadron — 43.60°N, 102.45°WCalvert — 39.20°N, 75.60°WCalvert — 38.60°N, 76.51°WStatenville — 30.40°N, 83.00°WPinjor — 30.73°N, 76.78°E

Loading coastlines…

The named rock units Emydidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 89 further formations hold fewer occurrences each and are not listed. 347 occurrences have no formation on record, which is common for older literature.

Emydidae and its relatives

Pleistocene

Where Emydidae and its relatives were recorded in the Pleistocene.

Found in the same rock

4,126 taxa

The Paleobiology Database records 426 sites for Emydidae, 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

282 references

Each of the 576 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. 270 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 Emydidae

Credit
M. Noth
Licence
CC BY 1.0
Commercial use
the licence allows it

No 3D scan of Emydidae was found in Smithsonian Open Access and Sketchfab.

MorphoSource 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 itTestudinoidea through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1815