Moenkopi Formation
E562092
The Moenkopi Formation is a widespread Triassic-age sedimentary rock unit of the southwestern United States, known for its reddish-brown mudstones and sandstones that record ancient river, tidal, and shallow marine environments.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Moenkopi Formation canonical | 8 |
| Petrified Forest Member | 2 |
| Moenkopi Formation in western North America | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5944124 — 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: Moenkopi Formation Context triple: [Capitol Reef National Park, hasRockUnits, Moenkopi Formation]
-
A.
Chinle Formation
The Chinle Formation is a Late Triassic geologic formation in the southwestern United States, renowned for its colorful badlands, rich fossil beds, and extensive petrified wood deposits.
-
B.
Vermejo Formation
The Vermejo Formation is a Late Cretaceous sedimentary rock unit in the Raton Basin of the western United States, known for its coal-bearing strata and significance in regional stratigraphy.
-
C.
Kayenta Formation
The Kayenta Formation is an Early Jurassic sandstone and siltstone rock unit on the Colorado Plateau, renowned for its distinctive red cliffs and important dinosaur fossil trackways.
-
D.
Claron Formation
The Claron Formation is a geologic rock unit of colorful limestones and mudstones best known for forming the striking hoodoos and cliffs of Bryce Canyon and other parts of the Paunsaugunt Plateau in southern Utah.
-
E.
Raton Formation
The Raton Formation is a geologic rock unit in the Raton Basin of Colorado and New Mexico, notable for preserving Late Cretaceous to early Paleogene sediments and fossils, including evidence across the Cretaceous–Paleogene boundary.
- 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: Moenkopi Formation Target entity description: The Moenkopi Formation is a widespread Triassic-age sedimentary rock unit of the southwestern United States, known for its reddish-brown mudstones and sandstones that record ancient river, tidal, and shallow marine environments.
-
A.
Chinle Formation
The Chinle Formation is a Late Triassic geologic formation in the southwestern United States, renowned for its colorful badlands, rich fossil beds, and extensive petrified wood deposits.
-
B.
Vermejo Formation
The Vermejo Formation is a Late Cretaceous sedimentary rock unit in the Raton Basin of the western United States, known for its coal-bearing strata and significance in regional stratigraphy.
-
C.
Kayenta Formation
The Kayenta Formation is an Early Jurassic sandstone and siltstone rock unit on the Colorado Plateau, renowned for its distinctive red cliffs and important dinosaur fossil trackways.
-
D.
Claron Formation
The Claron Formation is a geologic rock unit of colorful limestones and mudstones best known for forming the striking hoodoos and cliffs of Bryce Canyon and other parts of the Paunsaugunt Plateau in southern Utah.
-
E.
Raton Formation
The Raton Formation is a geologic rock unit in the Raton Basin of Colorado and New Mexico, notable for preserving Late Cretaceous to early Paleogene sediments and fossils, including evidence across the Cretaceous–Paleogene boundary.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
geologic formation
ⓘ
sedimentary rock unit ⓘ |
| chronostratigraphicUnit |
Lower Triassic
ⓘ
Middle Triassic ⓘ |
| color | reddish-brown ⓘ |
| containsFossilsOf |
amphibians
ⓘ
fish ⓘ invertebrates ⓘ plant remains ⓘ reptiles ⓘ tetrapod trackways ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| depositionalEnvironment |
fluvial
ⓘ
shallow marine ⓘ tidal ⓘ |
| exposedIn |
Capitol Reef National Park region
ⓘ
linked to:
Capitol Reef National Park
Grand Canyon region ⓘ
linked to:
Grand Canyon National Park
Zion National Park region ⓘ
linked to:
Zion National Park
|
| geologicAge | Triassic ⓘ |
| hasMember |
Ali Baba Member
ⓘ
Black Dragon Member ⓘ Holbrook Member ⓘ Shnabkaib Member ⓘ Sinbad Limestone Member ⓘ Tenderfoot Member ⓘ Timpoweap Member ⓘ Torrey Member ⓘ Virgin Limestone Member ⓘ |
| knownFor | well-preserved vertebrate trackways ⓘ |
| lithology |
mudstone
ⓘ
sandstone ⓘ |
| namedBy |
G. K. Gilbert
ⓘ
linked to:
Grove Karl Gilbert
|
| namedFor | Moenkopi Wash ⓘ |
| overlies |
Kaibab Formation
ⓘ
linked to:
Kaibab Limestone
|
| partOf |
Colorado Plateau
ⓘ
Southwestern United States ⓘ
linked to:
southwestern United States
|
| period |
Early Triassic
ⓘ
Middle Triassic ⓘ |
| primarySedimentaryStructures |
cross-bedding
ⓘ
mud cracks ⓘ ripple marks ⓘ |
| region |
Arizona
ⓘ
Colorado ⓘ Nevada ⓘ New Mexico ⓘ Utah ⓘ |
| stratigraphicUnitOf | Colorado Plateau sedimentary sequence ⓘ |
| thickness | up to several hundred meters ⓘ |
| underlies | Chinle 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: Moenkopi Formation Description of subject: The Moenkopi Formation is a widespread Triassic-age sedimentary rock unit of the southwestern United States, known for its reddish-brown mudstones and sandstones that record ancient river, tidal, and shallow marine environments.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Moenkopi Formation
linked to: Moenkopi Formation
linked to: Moenkopi Formation