Oldman Formation
E1157510
UNEXPLORED
The Oldman Formation is a Late Cretaceous sedimentary rock unit in Alberta, Canada, renowned for its rich dinosaur fossil assemblages.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Oldman Formation canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T15242351 — 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: Oldman Formation Context triple: [Daspletosaurus, geologicalFormation, Oldman Formation]
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A.
Spraberry Formation
The Spraberry Formation is a major oil-bearing geologic unit in West Texas, renowned as one of the most prolific tight oil reservoirs within the Permian Basin.
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B.
Curtis Formation
The Curtis Formation is a Middle Jurassic geologic unit in the western United States, characterized mainly by marine sandstones and siltstones that record shallow sea environments.
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C.
Lance Formation
Lance Formation is a Late Cretaceous geological formation in North America renowned for its rich dinosaur fossil beds, including specimens of Triceratops.
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D.
Diablo Formation
The Diablo Formation is a geologic rock unit in California known as a significant petroleum-bearing reservoir within fields such as the Belridge Oil Field.
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E.
Cornbrash Formation
The Cornbrash Formation is a Middle Jurassic limestone and marl unit in England known for its rich marine fossil assemblages and use in regional stratigraphic correlation.
- 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: Oldman Formation Target entity description: The Oldman Formation is a Late Cretaceous sedimentary rock unit in Alberta, Canada, renowned for its rich dinosaur fossil assemblages.
-
A.
Spraberry Formation
The Spraberry Formation is a major oil-bearing geologic unit in West Texas, renowned as one of the most prolific tight oil reservoirs within the Permian Basin.
-
B.
Curtis Formation
The Curtis Formation is a Middle Jurassic geologic unit in the western United States, characterized mainly by marine sandstones and siltstones that record shallow sea environments.
-
C.
Lance Formation
Lance Formation is a Late Cretaceous geological formation in North America renowned for its rich dinosaur fossil beds, including specimens of Triceratops.
-
D.
Diablo Formation
The Diablo Formation is a geologic rock unit in California known as a significant petroleum-bearing reservoir within fields such as the Belridge Oil Field.
-
E.
Cornbrash Formation
The Cornbrash Formation is a Middle Jurassic limestone and marl unit in England known for its rich marine fossil assemblages and use in regional stratigraphic correlation.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.