Thescelosaurus neglectus
E372772
Thescelosaurus neglectus is a small, herbivorous ornithischian dinosaur from the Late Cretaceous of North America, known for its robust limbs and association with some of the last dinosaur faunas before the mass extinction.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Thescelosaurus | 1 |
| Thescelosaurus neglectus canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3502403 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Thescelosaurus neglectus Context triple: [Hell Creek Formation, containsFossil, Thescelosaurus neglectus]
-
A.
Daspletosaurus
Daspletosaurus was a large, carnivorous tyrannosaurid dinosaur from the Late Cretaceous of North America, known as a powerful apex predator with a massive skull and robust teeth.
-
B.
Othnielosaurus
Othnielosaurus is a small, bipedal ornithischian dinosaur from the Late Jurassic of North America, known for its lightly built body and herbivorous diet.
-
C.
Coelophysis
Coelophysis was a small, lightly built, carnivorous dinosaur from the Late Triassic period, known for being one of the earliest well-documented theropods.
-
D.
Dryosaurus
Dryosaurus was a small, fast, plant-eating ornithopod dinosaur from the Late Jurassic period, known for its long legs and lightweight build.
-
E.
Compsognathus
Compsognathus was a small, bipedal carnivorous dinosaur from the Late Jurassic period, known for its slender build and for being one of the first dinosaurs reconstructed from nearly complete skeletons.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Thescelosaurus neglectus Target entity description: Thescelosaurus neglectus is a small, herbivorous ornithischian dinosaur from the Late Cretaceous of North America, known for its robust limbs and association with some of the last dinosaur faunas before the mass extinction.
-
A.
Daspletosaurus
Daspletosaurus was a large, carnivorous tyrannosaurid dinosaur from the Late Cretaceous of North America, known as a powerful apex predator with a massive skull and robust teeth.
-
B.
Othnielosaurus
Othnielosaurus is a small, bipedal ornithischian dinosaur from the Late Jurassic of North America, known for its lightly built body and herbivorous diet.
-
C.
Coelophysis
Coelophysis was a small, lightly built, carnivorous dinosaur from the Late Triassic period, known for being one of the earliest well-documented theropods.
-
D.
Dryosaurus
Dryosaurus was a small, fast, plant-eating ornithopod dinosaur from the Late Jurassic period, known for its long legs and lightweight build.
-
E.
Compsognathus
Compsognathus was a small, bipedal carnivorous dinosaur from the Late Jurassic period, known for its slender build and for being one of the first dinosaurs reconstructed from nearly complete skeletons.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
neornithischian
ⓘ
ornithischian dinosaur ⓘ species ⓘ |
| approximateLength | 2.5–4 meters ⓘ |
| approximateMass | 100–150 kilograms ⓘ |
| bodySize | small ⓘ |
| clade |
Ornithischia
ⓘ
surface form:
Neornithischia
Ornithischia ⓘ |
| coexistedWith |
Edmontosaurus annectens
ⓘ
Triceratops ⓘ
surface form:
Triceratops horridus
Tyrannosaurus ⓘ
surface form:
Tyrannosaurus rex
|
| continent | North America ⓘ |
| describedBy | Charles W. Gilmore ⓘ |
| diet | herbivorous ⓘ |
| environment |
floodplain habitats
ⓘ
riverine environments ⓘ |
| etymology | "neglectus" refers to being overlooked or neglected ⓘ |
| extinctionEvent |
Cretaceous–Paleogene boundary
ⓘ
surface form:
Cretaceous–Paleogene mass extinction
|
| family | Thescelosauridae ⓘ |
| feedingAdaptation | low-browsing herbivore ⓘ |
| fossilRangeEnd | end-Maastrichtian ⓘ |
| foundInFormation |
Frenchman Formation
ⓘ
Hell Creek Formation ⓘ Horseshoe Canyon Formation ⓘ Lance Formation ⓘ Scollard Formation ⓘ |
| genusNameMeaning | "marvelous lizard" for Thescelosaurus ⓘ |
| geologicalAge |
Maastrichtian
ⓘ
late Campanian ⓘ |
| knownFrom |
partial skeletons
ⓘ
skulls ⓘ |
| limbMorphology |
robust hind limbs
ⓘ
short forelimbs ⓘ |
| locomotion |
bipedal
ⓘ
facultatively quadrupedal ⓘ |
| notableFeature | association with latest Cretaceous dinosaur faunas ⓘ |
| paleobiogeography | western interior of North America ⓘ |
| parentTaxon |
Thescelosaurus neglectus
self-linksurface differs
ⓘ
surface form:
Thescelosaurus
|
| posture | cursorial ⓘ |
| reproduction | oviparous ⓘ |
| skeletonCompleteness | relatively well-known postcranial skeleton ⓘ |
| tailMorphology | stiffened tail ⓘ |
| taxonRank | species ⓘ |
| temporalRange | Late Cretaceous ⓘ |
| theropodPreyStatus | likely prey of large tyrannosaurids ⓘ |
| toothMorphology | leaf-shaped teeth ⓘ |
| typeSpecimenRepository | Smithsonian Institution ⓘ |
| yearDescribed | 1913 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Thescelosaurus neglectus Description of subject: Thescelosaurus neglectus is a small, herbivorous ornithischian dinosaur from the Late Cretaceous of North America, known for its robust limbs and association with some of the last dinosaur faunas before the mass extinction.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Thescelosaurus