Gryposaurus

Gryposaurus was a genus of duckbilled dinosaur that lived about 80 to 75 million years ago, in the Late Cretaceous of North America. Named species of Gryposaurus are known from the Dinosaur Park Formation in Alberta, Canada, and two formations in the United States: the Lower Two Medicine Formation in Montana and the Kaiparowits Formation of Utah. A possible additional species from the Javelina Formation in Texas may extend the temporal range of the genus to 66 million years ago.

Gryposaurus

Berkeley T. Compton · CC BY-SA 2.0 · 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
KritosauriniPBDB
Diet
herbivorePBDB, for Ornithopoda
Life habit
ground dwelling, gregariousPBDB, for Ornithischia
Motility
actively mobilePBDB, for Ornithischia
Environment
terrestrialPBDB, for Ornithischia
Length
10 mWikidata

Time the record covers

At least 127 million years on record.

The record covers at least 199.5 Mya to 72.2 Mya. No occurrence read is dated outside 201.4 Mya to 66 Mya.

Late Triassic — about 0 of 31 occurrencesEarly Jurassic — about 9 of 31 occurrencesEarly JurassicMiddle Jurassic — about 0 of 31 occurrencesLate Jurassic — about 0 of 31 occurrencesEarly Cretaceous — about 0 of 31 occurrencesLate Cretaceous — about 22 of 31 occurrencesLate CretaceousPaleocene — about 0 of 31 occurrences204–199 Mya — about 2 occurrences199–195 Mya — about 4 occurrences195–190 Mya — about 2 occurrences190–185 Mya — about 0.2 occurrences185–181 Mya — about 0.2 occurrences181–176 Mya — about 0.2 occurrences176–171 Mya — about 0.0 occurrences87–82 Mya — about 3 occurrences82–77 Mya — about 9 occurrences77–73 Mya — about 9 occurrences73–68 Mya — about 2 occurrences68–63 Mya — about 0.4 occurrences199.5 Mya72.2 Mya204 Mya63 Mya

31 occurrences of Gryposaurus 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

31 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

10 formations

Dinosaur Park — 50.75°N, 111.48°WDinosaur Park — 50.74°N, 111.51°WDinosaur Park — 50.79°N, 111.61°WDinosaur Park — 50.78°N, 111.36°WDinosaur Park — 50.67°N, 111.60°WLufeng — 25.68°N, 104.08°ELufeng — 25.18°N, 102.09°ELufeng — 25.14°N, 101.96°EKaiparowits — 37.64°N, 111.86°WKaiparowits — 37.67°N, 111.73°WKaiparowits — 37.47°N, 111.70°WKaiparowits — 37.46°N, 111.34°WTwo Medicine — 48.63°N, 113.75°WTwo Medicine — 48.49°N, 112.47°WOldman — 50.77°N, 111.53°WBearpaw Shale — 45.82°N, 109.13°WZhenzhuchong — 27.00°N, 107.00°EJudith River — 46.46°N, 109.41°WWapiti — 55.08°N, 119.53°WJavelina — 29.33°N, 103.43°W

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The named rock units Gryposaurus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Gryposaurus and its relatives

Late Cretaceous

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

Found in the same rock

120 taxa

The Paleobiology Database records 31 sites for Gryposaurus, 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

23 references

Each of the 31 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. 11 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 content2

Picture of Gryposaurus

Credit
Berkeley T. Compton
Licence
CC BY-SA 2.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
PeePmono
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

Smithsonian Open Access and MorphoSource were 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 itKritosaurini through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lambe 1914