Stephen Formation
E1145869
UNEXPLORED
The Stephen Formation is a Middle Cambrian geological formation in the Canadian Rockies renowned for preserving the fossil-rich Burgess Shale and providing key insights into early marine life evolution.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Stephen Formation canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T15223398 — 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: Stephen Formation Context triple: [Burgess Shale, partOf, Stephen Formation]
-
A.
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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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.
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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D.
Yeso Formation
The Yeso Formation is a geologic unit of early Permian age in the southwestern United States, notable for its thick sequences of evaporites and sandstones that record arid, shallow-marine and coastal depositional environments within the Permian Basin region.
-
E.
Murray formation
The Murray formation is a sedimentary rock unit on Mars within Gale Crater, studied by the Curiosity rover for its record of ancient lake and habitable environments.
- 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: Stephen Formation Target entity description: The Stephen Formation is a Middle Cambrian geological formation in the Canadian Rockies renowned for preserving the fossil-rich Burgess Shale and providing key insights into early marine life evolution.
-
A.
Lance Formation
Lance Formation is a Late Cretaceous geological formation in North America renowned for its rich dinosaur fossil beds, including specimens of Triceratops.
-
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.
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.
-
D.
Yeso Formation
The Yeso Formation is a geologic unit of early Permian age in the southwestern United States, notable for its thick sequences of evaporites and sandstones that record arid, shallow-marine and coastal depositional environments within the Permian Basin region.
-
E.
Murray formation
The Murray formation is a sedimentary rock unit on Mars within Gale Crater, studied by the Curiosity rover for its record of ancient lake and habitable environments.
- F. None of above. chosen
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Burgess Shale fossil lagerstätte
subject linked to:
Burgess Shale fossil lagerstätte