Straight Cliffs Formation
E557619
The Straight Cliffs Formation is a prominent Late Cretaceous sedimentary rock unit in southern Utah, noted for its extensive cliff-forming sandstones and rich fossil record.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Straight Cliffs Formation canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5947881 — 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: Straight Cliffs Formation Context triple: [Kaiparowits Plateau, contains, Straight Cliffs Formation]
-
A.
Kuilei Cliffs
Kuilei Cliffs is a scenic coastal bluff area on Oʻahu, Hawaiʻi, known for its oceanfront views, seaside walking paths, and proximity to Diamond Head.
-
B.
Red Rock escarpment
The Red Rock escarpment is a striking cliff formation of vivid red sandstone that forms a prominent natural backdrop and scenic highlight in the Pine Creek Canyon area.
-
C.
Bunda Cliffs
Bunda Cliffs are dramatic, sheer limestone sea cliffs along the remote southern coast of Australia, forming one of the most striking natural features of the Great Australian Bight.
-
D.
Bastei rock formations
The Bastei rock formations are a dramatic sandstone rock massif and popular viewpoint in Germany’s Saxon Switzerland National Park, overlooking the Elbe River and known for its iconic stone bridge and hiking trails.
-
E.
World’s End escarpment
World’s End escarpment is a dramatic sheer cliff and popular viewpoint in Sri Lanka’s Central Highlands, renowned for its panoramic vistas and steep drop into the surrounding valleys.
- 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: Straight Cliffs Formation Target entity description: The Straight Cliffs Formation is a prominent Late Cretaceous sedimentary rock unit in southern Utah, noted for its extensive cliff-forming sandstones and rich fossil record.
-
A.
Kuilei Cliffs
Kuilei Cliffs is a scenic coastal bluff area on Oʻahu, Hawaiʻi, known for its oceanfront views, seaside walking paths, and proximity to Diamond Head.
-
B.
Red Rock escarpment
The Red Rock escarpment is a striking cliff formation of vivid red sandstone that forms a prominent natural backdrop and scenic highlight in the Pine Creek Canyon area.
-
C.
Bunda Cliffs
Bunda Cliffs are dramatic, sheer limestone sea cliffs along the remote southern coast of Australia, forming one of the most striking natural features of the Great Australian Bight.
-
D.
Bastei rock formations
The Bastei rock formations are a dramatic sandstone rock massif and popular viewpoint in Germany’s Saxon Switzerland National Park, overlooking the Elbe River and known for its iconic stone bridge and hiking trails.
-
E.
World’s End escarpment
World’s End escarpment is a dramatic sheer cliff and popular viewpoint in Sri Lanka’s Central Highlands, renowned for its panoramic vistas and steep drop into the surrounding valleys.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| containsFossilsOf |
crocodyliforms
ⓘ
dinosaurs ⓘ fish ⓘ invertebrates ⓘ plants ⓘ turtles ⓘ |
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| depositionalEnvironment |
coastal plain
ⓘ
deltaic ⓘ fluvial ⓘ |
| exposedIn | Grand Staircase–Escalante National Monument ⓘ |
| geologicAge | Late Cretaceous ⓘ |
| hasEconomicResource | coal beds ⓘ |
| knownFor |
cliff-forming sandstones
ⓘ
rich fossil record ⓘ |
| lithology |
coal
ⓘ
conglomerate ⓘ mudstone ⓘ sandstone ⓘ siltstone ⓘ |
| locatedIn |
United States
ⓘ
linked to:
United States of America
southern Utah ⓘ |
| namedFor | straight cliffs along the Kaiparowits Plateau ⓘ |
| overlies | Tropic Shale ⓘ |
| partOf | Kaiparowits Plateau ⓘ |
| period | Cretaceous ⓘ |
| region | Colorado Plateau ⓘ |
| researchField |
paleontology
ⓘ
sedimentology ⓘ stratigraphy ⓘ |
| stage |
Campanian
ⓘ
Cenomanian ⓘ Coniacian ⓘ Santonian ⓘ Turonian ⓘ |
| stratigraphicUnitOf | Kaiparowits region ⓘ |
| subunit |
Drip Tank Member
ⓘ
John Henry Member ⓘ Smoky Hollow Member ⓘ Tibbet Canyon Member ⓘ |
| thickness | more than 600 meters ⓘ |
| underlies | Wahweap Formation ⓘ |
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: Straight Cliffs Formation Description of subject: The Straight Cliffs Formation is a prominent Late Cretaceous sedimentary rock unit in southern Utah, noted for its extensive cliff-forming sandstones and rich fossil record.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.