Aspideretoides

Aspideretoides is an extinct genus of soft-shelled turtle from the Late Cretaceous of North America.

Aspideretoides

Bloopityboop · 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
PlastomenidaePBDB
Diet
omnivorePBDB, for Cryptodira
Life habit
aquaticPBDB, for Cryptodira
Motility
actively mobilePBDB, for Osteichthyes
Environment
freshwaterPBDB, for Cryptodira

Time the record covers

At least 12 million years on record.

The record covers at least 72.2 Mya to 59.24 Mya. No occurrence read is dated outside 83.6 Mya to 56 Mya.

Late Cretaceous — about 43 of 48 occurrencesLate CretaceousPaleocene — about 5 of 48 occurrencesPaleoceneEocene — about 0 of 48 occurrences84–83 Mya — about 1 occurrence83–82 Mya — about 3 occurrences82–81 Mya — about 3 occurrences81–80 Mya — about 3 occurrences80–79 Mya — about 3 occurrences79–78 Mya — about 3 occurrences78–77 Mya — about 3 occurrences77–76 Mya — about 3 occurrences76–76 Mya — about 3 occurrences76–75 Mya — about 3 occurrences75–74 Mya — about 3 occurrences74–73 Mya — about 3 occurrences73–72 Mya — about 2 occurrences72–71 Mya — about 1 occurrence71–70 Mya — about 1 occurrence70–69 Mya — about 1 occurrence69–68 Mya — about 1 occurrence68–67 Mya — about 1 occurrence67–66 Mya — about 1 occurrence66–65 Mya — about 1 occurrence65–64 Mya — about 1 occurrence64–63 Mya — about 1.0 occurrences63–62 Mya — about 0.2 occurrences62–61 Mya — about 0.1 occurrences59–58 Mya — about 0.3 occurrences58–57 Mya — about 0.3 occurrences57–56 Mya — about 0.3 occurrences56–55 Mya — about 0.1 occurrences72.2 Mya59.24 Mya84.2 Mya55.4 Mya

48 occurrences of Aspideretoides 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

48 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

16 formations

Kirtland — 36.31°N, 108.08°WKirtland — 36.34°N, 108.21°WKirtland — 36.14°N, 108.11°WKirtland — 36.15°N, 107.92°WKirtland — 36.29°N, 108.54°WKirtland — 36.50°N, 108.08°WAguja — 29.23°N, 103.64°WAguja — 29.25°N, 103.55°WAguja — 29.32°N, 103.52°WJavelina — 29.30°N, 103.50°WJavelina — 29.40°N, 103.32°WJavelina — 29.21°N, 103.61°WJudith River — 48.93°N, 110.57°WJudith River — 48.97°N, 110.55°WFort Union — 47.60°N, 107.00°WFort Union — 47.70°N, 105.80°WKirtland? — 36.29°N, 108.54°WKirtland? — 36.27°N, 108.17°WDinosaur Park — 49.07°N, 110.45°WDinosaur Park — 50.68°N, 108.09°WKaiparowits — 37.42°N, 111.79°WKaiparowits — 37.45°N, 111.53°WHell Creek — 45.87°N, 103.79°WHell Creek — 45.00°N, 103.19°WMesaverde — 42.85°N, 107.28°WFerris — 41.95°N, 106.89°WOjo Alamo — 36.27°N, 108.17°WFruitland — 36.12°N, 107.78°WFox Hills Sandstone — 39.50°N, 104.70°WPaskapoo — 50.74°N, 113.85°WWapiti — 55.07°N, 118.69°W

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The named rock units Aspideretoides 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.

Aspideretoides and its relatives

Late Cretaceous

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

Found in the same rock

231 taxa

The Paleobiology Database records 47 sites for Aspideretoides, 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

17 references

Each of the 48 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. 5 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 Aspideretoides

Credit
Bloopityboop
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 itPlastomenidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gardner et al. 1995