Pembina Member
E1145393
UNEXPLORED
The Pembina Member is a stratigraphic subdivision of the Pierre Shale, representing a distinct sedimentary unit recognized in Late Cretaceous rock sequences of the Western Interior of North America.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pembina Member canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T15239076 — 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: Pembina Member Context triple: [Pierre Shale, hasSubunits, Pembina Member]
-
A.
Scollard Formation
The Scollard Formation is a Late Cretaceous to early Paleocene geological formation in Alberta, Canada, known for preserving diverse dinosaur fossils and evidence of the Cretaceous–Paleogene boundary.
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B.
Dakota Formation
The Dakota Formation is a widespread Cretaceous sedimentary rock unit in North America, noted for its sandstone deposits that record the advance of the Western Interior Seaway and preserve abundant plant and dinosaur fossils.
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C.
Morrison Formation
The Morrison Formation is a vast Late Jurassic sedimentary rock formation in the western United States renowned for its exceptionally rich assemblage of dinosaur fossils, including iconic sauropods and theropods.
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D.
Kiowa Formation
The Kiowa Formation is a Cretaceous geologic unit in the central United States, known for its marine sediments that record an early transgression of the Western Interior Seaway.
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E.
Gaskiers Formation
The Gaskiers Formation is a Neoproterozoic rock unit in Newfoundland, Canada, notable for preserving geological evidence of one of the late Precambrian global glaciations.
- 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: Pembina Member Target entity description: The Pembina Member is a stratigraphic subdivision of the Pierre Shale, representing a distinct sedimentary unit recognized in Late Cretaceous rock sequences of the Western Interior of North America.
-
A.
Scollard Formation
The Scollard Formation is a Late Cretaceous to early Paleocene geological formation in Alberta, Canada, known for preserving diverse dinosaur fossils and evidence of the Cretaceous–Paleogene boundary.
-
B.
Dakota Formation
The Dakota Formation is a widespread Cretaceous sedimentary rock unit in North America, noted for its sandstone deposits that record the advance of the Western Interior Seaway and preserve abundant plant and dinosaur fossils.
-
C.
Morrison Formation
The Morrison Formation is a vast Late Jurassic sedimentary rock formation in the western United States renowned for its exceptionally rich assemblage of dinosaur fossils, including iconic sauropods and theropods.
-
D.
Kiowa Formation
The Kiowa Formation is a Cretaceous geologic unit in the central United States, known for its marine sediments that record an early transgression of the Western Interior Seaway.
-
E.
Gaskiers Formation
The Gaskiers Formation is a Neoproterozoic rock unit in Newfoundland, Canada, notable for preserving geological evidence of one of the late Precambrian global glaciations.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.