Late Jurassic
E53042
The Late Jurassic was the final epoch of the Jurassic Period, marked by warm climates, high sea levels, and the flourishing of large dinosaurs and early birds.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Late Jurassic canonical | 14 |
| Late Jurassic period | 1 |
| Upper Jurassic | 1 |
| Upper Jurassic Series | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T415611 — 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.
Target entity: Late Jurassic Context triple: [Jurassic Period, subdividedInto, Late Jurassic]
-
A.
Early Jurassic
The Early Jurassic was the first epoch of the Jurassic Period, marked by the recovery of life after the end-Triassic extinction and the early diversification of dinosaurs and marine reptiles.
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B.
Cretaceous
The Cretaceous was the final period of the Mesozoic Era, marked by high sea levels, diverse dinosaurs, and ending with the mass extinction that wiped them out about 66 million years ago.
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C.
Jurassic Period
The Jurassic Period was a major division of the Mesozoic Era characterized by warm climates, the dominance and diversification of dinosaurs, and the early evolution of birds.
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D.
Mesozoic Era
The Mesozoic Era was a major geological era, often called the "Age of Reptiles," during which dinosaurs dominated the land and the supercontinent Pangaea broke apart into modern continents.
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E.
Triassic
The Triassic was the first period of the Mesozoic Era, marked by the initial diversification of dinosaurs and the recovery of life following the Permian–Triassic mass extinction.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Late Jurassic Target entity description: The Late Jurassic was the final epoch of the Jurassic Period, marked by warm climates, high sea levels, and the flourishing of large dinosaurs and early birds.
-
A.
Early Jurassic
The Early Jurassic was the first epoch of the Jurassic Period, marked by the recovery of life after the end-Triassic extinction and the early diversification of dinosaurs and marine reptiles.
-
B.
Cretaceous
The Cretaceous was the final period of the Mesozoic Era, marked by high sea levels, diverse dinosaurs, and ending with the mass extinction that wiped them out about 66 million years ago.
-
C.
Jurassic Period
The Jurassic Period was a major division of the Mesozoic Era characterized by warm climates, the dominance and diversification of dinosaurs, and the early evolution of birds.
-
D.
Mesozoic Era
The Mesozoic Era was a major geological era, often called the "Age of Reptiles," during which dinosaurs dominated the land and the supercontinent Pangaea broke apart into modern continents.
-
E.
Triassic
The Triassic was the first period of the Mesozoic Era, marked by the initial diversification of dinosaurs and the recovery of life following the Permian–Triassic mass extinction.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf | geologic epoch ⓘ |
| atmosphere |
elevated atmospheric carbon dioxide
ⓘ
high atmospheric oxygen compared to present ⓘ |
| boundaryDefinition |
base defined by first appearance of ammonite Cardioceras redcliffense (Oxfordian GSSP)
ⓘ
top approximated near major biotic and geochemical changes at Jurassic–Cretaceous transition ⓘ |
| characterizedBy |
abundant marine reptiles
ⓘ
diverse dinosaur faunas ⓘ early birds ⓘ large sauropod dinosaurs ⓘ large theropod dinosaurs ⓘ reef‑building corals ⓘ rich ammonite faunas ⓘ |
| climate |
generally warm
ⓘ
largely ice‑free poles ⓘ |
| endTime | approximately 145 million years ago ⓘ |
| flora |
conifer‑dominated forests
ⓘ
cycads and bennettitaleans ⓘ ginkgophytes ⓘ |
| follows | Middle Jurassic ⓘ |
| includesStage |
Kimmeridgian
ⓘ
Oxfordian ⓘ Tithonian ⓘ |
| marineLife |
ammonites
ⓘ
belemnites ⓘ ichthyosaurs ⓘ marine crocodile relatives ⓘ plesiosaurs ⓘ |
| notableFossilSite |
Kimmeridge
ⓘ
surface form:
Kimmeridge Clay
Morrison Formation ⓘ Portland stone ⓘ
surface form:
Portland Stone
Solnhofen Limestone ⓘ Tendaguru Formation ⓘ |
| notableTaxon |
Allosaurus
ⓘ
Apatosaurus ⓘ Archaeopteryx lithographica ⓘ
surface form:
Archaeopteryx
Brachiosaurus ⓘ Camarasaurus ⓘ Ceratosaurus ⓘ Diplodocus ⓘ Stegosaurus ⓘ |
| oceanCoverage | extensive shallow epicontinental seas ⓘ |
| paleogeography |
large continental landmasses at lower latitudes
ⓘ
widespread carbonate platforms ⓘ |
| partOf | Jurassic Period ⓘ |
| precedes |
Cretaceous
ⓘ
surface form:
Early Cretaceous
|
| seaLevel | high global sea levels ⓘ |
| startTime | approximately 163.5 million years ago ⓘ |
| stratotypeRegion | Europe ⓘ |
| subdivisionOf | Mesozoic Era ⓘ |
| tectonics |
continued breakup of Pangaea
ⓘ
opening of the North Atlantic Ocean ⓘ separation of Laurasia and Gondwana progressing ⓘ |
| timeSpan | about 18.5 million years ⓘ |
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.
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.
Subject: Late Jurassic Description of subject: The Late Jurassic was the final epoch of the Jurassic Period, marked by warm climates, high sea levels, and the flourishing of large dinosaurs and early birds.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.