Thescelosaurus neglectus

Thescelosaurus is a genus of ornithischian dinosaur that lived during the Late Cretaceous period in western North America. It was named and described in 1913 by the paleontologist Charles W. Gilmore; the type species is T. neglectus. Two other species, T. garbanii and T. assiniboiensis, were named in 1976 and 2011, respectively. Additional species have been suggested but are currently not accepted. Thescelosaurus is the eponymous member of its family, the Thescelosauridae. Thescelosaurids are either considered to be basal ("primitive") ornithopods, or are placed outside of this group within the broader group Neornithischia.

Thescelosaurus neglectus

Nobu Tamura ( http://spinops.blogspot.com ) · CC BY 2.5 · via Wikidata/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
ThescelosaurusPBDB
Diet
herbivorePBDB, for Ornithischia
Life habit
ground dwelling, gregariousPBDB, for Ornithischia
Motility
actively mobilePBDB, for Ornithischia
Environment
terrestrialPBDB, for Ornithischia

Time the record covers

At most 18 million years on record.

Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 28 of 28 occurrencesLate CretaceousPaleocene — about 0 of 28 occurrences84–83 Mya — about 0.1 occurrences83–83 Mya — about 0.4 occurrences83–82 Mya — about 0.4 occurrences82–82 Mya — about 0.4 occurrences82–81 Mya — about 0.4 occurrences81–80 Mya — about 0.4 occurrences80–80 Mya — about 0.4 occurrences80–79 Mya — about 0.4 occurrences79–79 Mya — about 0.4 occurrences79–78 Mya — about 0.4 occurrences78–77 Mya — about 0.4 occurrences77–77 Mya — about 0.4 occurrences77–76 Mya — about 0.4 occurrences76–75 Mya — about 0.4 occurrences75–75 Mya — about 0.4 occurrences75–74 Mya — about 0.4 occurrences74–74 Mya — about 0.4 occurrences74–73 Mya — about 0.4 occurrences73–72 Mya — about 0.4 occurrences72–72 Mya — about 2 occurrences72–71 Mya — about 2 occurrences71–70 Mya — about 2 occurrences70–70 Mya — about 2 occurrences70–69 Mya — about 2 occurrences69–69 Mya — about 2 occurrences69–68 Mya — about 2 occurrences68–67 Mya — about 2 occurrences67–67 Mya — about 2 occurrences67–66 Mya — about 2 occurrences66–66 Mya — about 0.4 occurrences84.1 Mya65.5 Mya

28 occurrences of Thescelosaurus neglectus 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

28 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

5 formations

Hell Creek — 45.95°N, 103.96°WHell Creek — 46.10°N, 103.30°WHell Creek — 45.98°N, 103.75°WHell Creek — 46.41°N, 103.94°WHell Creek — 46.38°N, 103.96°WHell Creek — 46.33°N, 103.90°WHell Creek — 45.94°N, 103.95°WHell Creek — 47.94°N, 106.19°WHell Creek — 47.81°N, 106.28°WHell Creek — 47.68°N, 105.98°WHell Creek — 47.80°N, 106.10°WHell Creek — 45.50°N, 103.10°WHell Creek — 45.64°N, 103.49°WHell Creek — 45.00°N, 103.19°WOldman — 50.75°N, 111.51°WOldman — 50.83°N, 111.32°WDinosaur Park — 50.75°N, 111.46°WDinosaur Park — 50.75°N, 111.47°WLance — 43.27°N, 104.57°WLance — 45.00°N, 103.18°WLance — 45.48°N, 104.19°WFrenchman — 49.04°N, 106.60°W

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

Thescelosaurus neglectus and its relatives

Late Cretaceous

Where Thescelosaurus neglectus and its relatives were recorded in the Late Cretaceous.

Found in the same rock

184 taxa

The Paleobiology Database records 28 sites for Thescelosaurus neglectus, 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

11 references

Each of the 28 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. 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 content3

Picture of Thescelosaurus neglectus

Credit
Nobu Tamura ( http://spinops.blogspot.com )
Licence
CC BY 2.5
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Thescelosaurus neglectus · ncsm:ncsm-vertpaleo:15728

3D model

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

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 itThescelosaurus through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gilmore 1913