Camarasaurus
E278740
Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Camarasaurus canonical | 11 |
| Camarasaurus sp. | 1 |
| Camarasaurus supremus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2509910 — 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: Camarasaurus Context triple: [Morrison Formation, containsFossilTaxon, Camarasaurus]
-
A.
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.
-
B.
Brachiosaurus
Brachiosaurus is a large, long-necked sauropod dinosaur famous for its towering height and iconic appearances in popular culture.
-
C.
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.
-
D.
Saurophaganax maximus
Saurophaganax maximus is a large Late Jurassic theropod dinosaur, closely related to Allosaurus, known from fossil remains found in what is now Oklahoma.
-
E.
Juramaia
Juramaia is an early mammal from the Late Jurassic period that represents one of the oldest known members of the eutherian (placental mammal) lineage.
- 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: Camarasaurus Target entity description: Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
-
A.
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.
-
B.
Brachiosaurus
Brachiosaurus is a large, long-necked sauropod dinosaur famous for its towering height and iconic appearances in popular culture.
-
C.
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.
-
D.
Saurophaganax maximus
Saurophaganax maximus is a large Late Jurassic theropod dinosaur, closely related to Allosaurus, known from fossil remains found in what is now Oklahoma.
-
E.
Juramaia
Juramaia is an early mammal from the Late Jurassic period that represents one of the oldest known members of the eutherian (placental mammal) lineage.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
herbivorous dinosaur
ⓘ
prehistoric animal ⓘ sauropod dinosaur ⓘ |
| belongsToFamily | Camarasauridae ⓘ |
| bodyPlan |
long-necked
ⓘ
long-tailed ⓘ |
| class | Reptilia ⓘ |
| coexistedWith |
Allosaurus
ⓘ
Apatosaurus ⓘ Diplodocus ⓘ |
| diet | herbivorous ⓘ |
| estimatedLength | 15–23 meters ⓘ |
| estimatedMass | up to about 20 metric tons ⓘ |
| family | Camarasauridae ⓘ |
| fossilSite | Morrison Formation ⓘ |
| fossilType | relatively complete skeletons ⓘ |
| foundIn |
Colorado
ⓘ
New Mexico ⓘ United States ⓘ
linked to:
United States of America
Utah ⓘ Wyoming ⓘ |
| geologicalAge |
Kimmeridgian
ⓘ
linked to:
Kimmeridgian stage
Tithonian ⓘ |
| geologicalPeriod | Late Jurassic ⓘ |
| habitat |
floodplains
ⓘ
riverine environments ⓘ |
| infraorder | Sauropoda ⓘ |
| kingdom | Animalia ⓘ |
| livedIn | North America ⓘ |
| locomotion | quadrupedal ⓘ |
| namedBy | Edward Drinker Cope ⓘ |
| nameMeaning | chambered lizard ⓘ |
| notableAnatomicalFeature |
hollowed vertebrae with chambers
ⓘ
large, boxy skull ⓘ shorter neck relative to some other sauropods ⓘ spoon-shaped teeth ⓘ |
| order | Saurischia ⓘ |
| paleobiology | likely gregarious behavior ⓘ |
| phylum | Chordata ⓘ |
| reproduction | oviparous ⓘ |
| skeletonCompleteness | one of the most commonly found sauropods in the Morrison Formation ⓘ |
| suborder | Sauropodomorpha ⓘ |
| superorder | Dinosauria ⓘ |
| taxonRank | genus ⓘ |
| temporalRange | approximately 155–145 million years ago ⓘ |
| toothMorphology | robust, spatulate teeth suited for coarse vegetation ⓘ |
| typeSpecies |
Camarasaurus supremus
ⓘ
linked to:
Camarasaurus
|
| 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: Camarasaurus Description of subject: Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Camarasaurus
linked to: Camarasaurus