Ptychotrygon

No picture of Ptychotrygon was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Ptychotrygon, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PtychotrygonidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 21 million years on record.

The record covers at least 93.9 Mya to 72.2 Mya. No occurrence read is dated outside 100.5 Mya to 66 Mya.

Early Cretaceous — about 0 of 127 occurrencesLate Cretaceous — about 127 of 127 occurrencesLate CretaceousPaleocene — about 0 of 127 occurrences101–100 Mya — about 1 occurrence100–99 Mya — about 3 occurrences99–98 Mya — about 3 occurrences98–96 Mya — about 3 occurrences96–95 Mya — about 3 occurrences95–94 Mya — about 3 occurrences94–93 Mya — about 5 occurrences93–92 Mya — about 6 occurrences92–90 Mya — about 6 occurrences90–89 Mya — about 4 occurrences89–88 Mya — about 1 occurrence88–87 Mya — about 1 occurrence87–86 Mya — about 2 occurrences86–84 Mya — about 6 occurrences84–83 Mya — about 6 occurrences83–82 Mya — about 5 occurrences82–81 Mya — about 5 occurrences81–80 Mya — about 5 occurrences80–78 Mya — about 5 occurrences78–77 Mya — about 5 occurrences77–76 Mya — about 5 occurrences76–75 Mya — about 5 occurrences75–74 Mya — about 5 occurrences74–72 Mya — about 5 occurrences72–71 Mya — about 5 occurrences71–70 Mya — about 5 occurrences70–69 Mya — about 5 occurrences69–68 Mya — about 5 occurrences68–67 Mya — about 5 occurrences67–65 Mya — about 2 occurrences93.9 Mya72.2 Mya101.2 Mya65.3 Mya

127 occurrences of Ptychotrygon 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

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

46 formations

Fox Hills — 46.05°N, 103.88°WFox Hills — 46.47°N, 99.58°WFox Hills — 44.52°N, 102.39°WAguja — 29.32°N, 103.52°WAguja — 29.10°N, 103.17°WAguja — 29.46°N, 103.56°WMesaverde — 44.08°N, 107.73°WMesaverde — 44.11°N, 107.76°WMesaverde — 44.17°N, 107.81°WEutaw — 32.38°N, 84.93°WEutaw — 32.35°N, 86.35°WEutaw — 33.52°N, 88.40°WEutaw — 32.77°N, 87.87°WNavesink — 40.35°N, 74.17°WNavesink — 40.38°N, 74.21°WCarlile Shale — 39.89°N, 98.03°WCarlile Shale — 43.40°N, 103.36°WCarlile Shale — 39.78°N, 98.15°WCarlile Shale — 42.74°N, 97.03°WCarlile Shale — 44.09°N, 104.68°WMarshalltown — 40.30°N, 74.30°WMarshalltown — 39.55°N, 75.65°WJudith River — 48.03°N, 109.01°WJudith River — 47.79°N, 108.94°WJudith River — 48.01°N, 108.91°WJudith River — 47.74°N, 108.96°WDakota — 40.06°N, 97.34°WDakota — 38.92°N, 98.50°WDinosaur Park — 50.81°N, 111.32°WBlufftown — 32.16°N, 85.03°WBlufftown — 32.14°N, 84.96°WPoint Lookout — 35.20°N, 107.05°WKemp Clay — 33.21°N, 95.92°WPictured Cliffs Sandstone — 35.70°N, 107.00°WTar Heel — 34.61°N, 78.60°WAmman — 29.92°N, 36.17°EAmman — 31.46°N, 35.78°EMata Amarilla — 49.74°S, 71.09°WCrevasse Canyon — 35.20°N, 107.05°WAguja — 28.94°N, 103.37°WFruitland — 36.27°N, 108.26°WNew Egypt — 40.09°N, 74.55°WWadi Umm Ghudran — 31.18°N, 35.70°ECusseta — 32.14°N, 84.95°WDonoho Creek — 34.06°N, 79.53°W

Loading coastlines…

The named rock units Ptychotrygon has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 further formations hold fewer occurrences each and are not listed. 20 occurrences have no formation on record, which is common for older literature.

Ptychotrygon and its relatives

Late Cretaceous

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

Found in the same rock

770 taxa

The Paleobiology Database records 101 sites for Ptychotrygon, 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

78 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. 66 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 content0

No picture of Ptychotrygon was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Ptychotrygon, or no answer at all. This entry cannot say which.

No 3D scan of Ptychotrygon was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPtychotrygonidae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jaekel 1894