Edaphosaurus
E687930
Edaphosaurus was a large, sail-backed, herbivorous synapsid from the Late Carboniferous to Early Permian period, notable for its distinctive spiny neural sail and importance in early amniote evolution.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Edaphosaurus canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7748074 — 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: Edaphosaurus Context triple: [Edward Drinker Cope, describedTaxa, Edaphosaurus]
-
A.
Dimetrodon
Dimetrodon is an extinct sail-backed synapsid from the Early Permian period, often mistaken for a dinosaur but more closely related to mammals.
-
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.
Futalognkosaurus
Futalognkosaurus is a gigantic Late Cretaceous titanosaurian sauropod dinosaur from Patagonia, known from exceptionally complete fossil remains that make it one of the best-understood giant dinosaurs.
-
D.
Camarasaurus
Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
-
E.
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.
- 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: Edaphosaurus Target entity description: Edaphosaurus was a large, sail-backed, herbivorous synapsid from the Late Carboniferous to Early Permian period, notable for its distinctive spiny neural sail and importance in early amniote evolution.
-
A.
Dimetrodon
Dimetrodon is an extinct sail-backed synapsid from the Early Permian period, often mistaken for a dinosaur but more closely related to mammals.
-
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.
Futalognkosaurus
Futalognkosaurus is a gigantic Late Cretaceous titanosaurian sauropod dinosaur from Patagonia, known from exceptionally complete fossil remains that make it one of the best-understood giant dinosaurs.
-
D.
Camarasaurus
Camarasaurus was a large, long-necked herbivorous sauropod dinosaur from the Late Jurassic period of North America.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
extinct genus of synapsids
ⓘ
herbivorous synapsid ⓘ pelycosaur-grade synapsid ⓘ |
| clade | Synapsida NERFINISHED ⓘ |
| diet | herbivorous ⓘ |
| discoveredIn | 19th century ⓘ |
| ecologicalRole | large terrestrial herbivore ⓘ |
| environment |
coal swamp margins
ⓘ
lowland floodplains ⓘ |
| estimatedLength | approximately 3 to 3.5 meters ⓘ |
| estimatedMass | approximately 100 to 300 kilograms ⓘ |
| extinctionStatus | extinct ⓘ |
| family | Edaphosauridae NERFINISHED ⓘ |
| fossilDistribution |
Europe
NERFINISHED
ⓘ
North America NERFINISHED ⓘ |
| geologicalFormation |
European Permian deposits
ⓘ
Ohio coal measures ⓘ Texas red beds NERFINISHED ⓘ |
| jawAdaptation | adapted for processing fibrous plants ⓘ |
| kingdom | Animalia ⓘ |
| livedDuring |
Cisuralian epoch
NERFINISHED
ⓘ
Pennsylvanian subperiod NERFINISHED ⓘ |
| locomotion | quadrupedal ⓘ |
| namedBy | Edward Drinker Cope NERFINISHED ⓘ |
| notableFeature |
barrel-shaped body
ⓘ
crossbars on neural spines ⓘ elongate neural spines ⓘ robust limbs ⓘ short, deep skull ⓘ tall dorsal sail ⓘ |
| order | Pelycosauria NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| relatedTo | Dimetrodon NERFINISHED ⓘ |
| reproduction | amniote egg-laying ⓘ |
| sailFunctionHypothesis |
display
ⓘ
species recognition ⓘ thermoregulation ⓘ |
| sailStructure | neural spines with lateral tubercles ⓘ |
| sharesFeatureWith | sail-backed synapsids ⓘ |
| significance |
important for understanding early amniote evolution
ⓘ
one of the earliest large terrestrial herbivores ⓘ |
| taxonRank | genus ⓘ |
| temporalRange |
Early Permian
NERFINISHED
ⓘ
Late Carboniferous ⓘ |
| toothMorphology |
peg-like teeth
ⓘ
tooth plates for grinding plant material ⓘ |
| typeSpecies | Edaphosaurus pogonias NERFINISHED ⓘ |
| yearDescribed | 1882 ⓘ |
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: Edaphosaurus Description of subject: Edaphosaurus was a large, sail-backed, herbivorous synapsid from the Late Carboniferous to Early Permian period, notable for its distinctive spiny neural sail and importance in early amniote evolution.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.