Stegosaurus
E281543
Stegosaurus is a large, herbivorous, plated dinosaur from the Late Jurassic period, recognizable by the distinctive double row of bony plates along its back and spiked tail.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Stegosaurus canonical | 13 |
| Stegosaurus armatus | 2 |
| Stegosaurus stenops | 1 |
| Stegosaurus ungulatus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2509912 — 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: Stegosaurus Context triple: [Morrison Formation, containsFossilTaxon, Stegosaurus]
-
A.
Diplodocus
Diplodocus is a long-necked, whip-tailed sauropod dinosaur from the Late Jurassic period of North America, known for its great size and distinctive skeletal proportions.
-
B.
Camarasaurus
Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
-
C.
Apatosaurus
Apatosaurus is a large, long-necked sauropod dinosaur from the Late Jurassic of North America, known for its massive body, long tail, and historically confused taxonomy with Brontosaurus.
-
D.
Allosaurus
Allosaurus was a large, carnivorous theropod dinosaur of the Late Jurassic period, known as one of the top predators of its ecosystem in what is now North America.
-
E.
Brachiosaurus
Brachiosaurus is a large, long-necked sauropod dinosaur famous for its towering height and iconic appearances in popular culture.
- 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: Stegosaurus Target entity description: Stegosaurus is a large, herbivorous, plated dinosaur from the Late Jurassic period, recognizable by the distinctive double row of bony plates along its back and spiked tail.
-
A.
Diplodocus
Diplodocus is a long-necked, whip-tailed sauropod dinosaur from the Late Jurassic period of North America, known for its great size and distinctive skeletal proportions.
-
B.
Camarasaurus
Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
-
C.
Apatosaurus
Apatosaurus is a large, long-necked sauropod dinosaur from the Late Jurassic of North America, known for its massive body, long tail, and historically confused taxonomy with Brontosaurus.
-
D.
Allosaurus
Allosaurus was a large, carnivorous theropod dinosaur of the Late Jurassic period, known as one of the top predators of its ecosystem in what is now North America.
-
E.
Brachiosaurus
Brachiosaurus is a large, long-necked sauropod dinosaur famous for its towering height and iconic appearances in popular culture.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf | genus of dinosaurs ⓘ |
| bodyLength | approximately 9 meters ⓘ |
| bodyMass | approximately 5 metric tons ⓘ |
| brainSize | small relative to body size ⓘ |
| class | Reptilia ⓘ |
| contemporaneousWith |
Allosaurus
ⓘ
Apatosaurus ⓘ |
| diet | herbivorous ⓘ |
| distinctiveFeature |
double row of bony plates along the back
ⓘ
spiked tail (thagomizer) ⓘ |
| ecologicalRole | large low-browsing herbivore ⓘ |
| family |
Stegosauria
ⓘ
surface form:
Stegosauridae
|
| forelimbLength | shorter than hind limbs ⓘ |
| fossilRange | about 155 to 150 million years ago ⓘ |
| fossilSite |
Colorado
ⓘ
Oklahoma ⓘ Utah ⓘ Wyoming ⓘ western United States ⓘ |
| geologicalFormation | Morrison Formation ⓘ |
| habitat | semi-arid floodplains ⓘ |
| hadPlates | large dermal plates ⓘ |
| hasSpecies |
Stegosaurus
self-linksurface differs
ⓘ
surface form:
Stegosaurus armatus
Stegosaurus self-linksurface differs ⓘ
surface form:
Stegosaurus stenops
Stegosaurus self-linksurface differs ⓘ
surface form:
Stegosaurus ungulatus
|
| infraorder | Stegosauria ⓘ |
| kingdom | Animalia ⓘ |
| livedDuring |
Kimmeridgian
ⓘ
Tithonian ⓘ |
| locomotion | quadrupedal ⓘ |
| namedBy | Othniel Charles Marsh ⓘ |
| nameMeaning | roof lizard ⓘ |
| nationalFossil | state fossil of Colorado ⓘ |
| order | Ornithischia ⓘ |
| phylum | Chordata ⓘ |
| plateFunction |
defense (hypothesized)
ⓘ
display ⓘ thermoregulation (hypothesized) ⓘ |
| popularCulture | iconic dinosaur in books and media ⓘ |
| posture | low-slung body with arched back ⓘ |
| skeletonOrientation | plates arranged in alternating double row ⓘ |
| suborder |
Ornithischia
ⓘ
surface form:
Thyreophora
|
| superorder | Dinosauria ⓘ |
| tailSpikesCount | typically four spikes on tail ⓘ |
| tailWeapon | thagomizer ⓘ |
| taxonRank | genus ⓘ |
| timePeriod | Late Jurassic ⓘ |
| typeSpecies |
Stegosaurus
self-linksurface differs
ⓘ
surface form:
Stegosaurus armatus
|
| yearDescribed | 1877 ⓘ |
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: Stegosaurus Description of subject: Stegosaurus is a large, herbivorous, plated dinosaur from the Late Jurassic period, recognizable by the distinctive double row of bony plates along its back and spiked tail.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Stegosaurus armatus
this entity surface form:
Stegosaurus armatus
this entity surface form:
Stegosaurus stenops
this entity surface form:
Stegosaurus ungulatus