Owl Rock Member
E757097
Owl Rock Member is a distinctive upper unit of the Late Triassic Chinle Formation, known for its colorful mudstones and limestones that preserve important terrestrial and lacustrine fossils in the southwestern United States.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Owl Rock Member canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8779353 — 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: Owl Rock Member Context triple: [Chinle Formation, hasMember, Owl Rock Member]
-
A.
Bullhead Rock
Bullhead Rock is a distinctive rock formation along the Colorado River in Arizona that gave its name to the nearby city of Bullhead City.
-
B.
Oyster Rock
Oyster Rock is a small fortified island in Mumbai Harbour, historically used for coastal defense and now a prominent maritime landmark off the coast of Mumbai, India.
-
C.
Blossom Rock
Blossom Rock was an American character actress best known for playing Grandmama on the 1960s television series "The Addams Family."
-
D.
Pigeon Rocks
Pigeon Rocks is a famous pair of natural offshore rock arches and sea stacks off the coast of Beirut, Lebanon, known as a popular scenic and sunset-viewing landmark.
-
E.
Three Arch Rocks
Three Arch Rocks is a small group of prominent offshore sea stacks and wildlife refuge islands located off the coast of northern Oregon.
- 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: Owl Rock Member Target entity description: Owl Rock Member is a distinctive upper unit of the Late Triassic Chinle Formation, known for its colorful mudstones and limestones that preserve important terrestrial and lacustrine fossils in the southwestern United States.
-
A.
Bullhead Rock
Bullhead Rock is a distinctive rock formation along the Colorado River in Arizona that gave its name to the nearby city of Bullhead City.
-
B.
Oyster Rock
Oyster Rock is a small fortified island in Mumbai Harbour, historically used for coastal defense and now a prominent maritime landmark off the coast of Mumbai, India.
-
C.
Blossom Rock
Blossom Rock was an American character actress best known for playing Grandmama on the 1960s television series "The Addams Family."
-
D.
Pigeon Rocks
Pigeon Rocks is a famous pair of natural offshore rock arches and sea stacks off the coast of Beirut, Lebanon, known as a popular scenic and sunset-viewing landmark.
-
E.
Three Arch Rocks
Three Arch Rocks is a small group of prominent offshore sea stacks and wildlife refuge islands located off the coast of northern Oregon.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
member
ⓘ
stratigraphic unit ⓘ |
| chronostratigraphy | Norian ⓘ |
| color | colorful ⓘ |
| contains |
carbonate nodules
ⓘ
freshwater limestone beds ⓘ paleosols ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depositionalSetting | fluvial-lacustrine ⓘ |
| diagenesis | carbonate cementation ⓘ |
| environmentOfDeposition |
lacustrine
ⓘ
terrestrial ⓘ |
| exposedIn |
Arizona
NERFINISHED
ⓘ
Colorado NERFINISHED ⓘ New Mexico NERFINISHED ⓘ Utah NERFINISHED ⓘ |
| formationPartOf | Chinle Formation NERFINISHED ⓘ |
| fossilType |
invertebrate fossils
ⓘ
plant fossils ⓘ vertebrate fossils ⓘ |
| geologicAge | Late Triassic NERFINISHED ⓘ |
| geologicGroup | Chinle Group NERFINISHED ⓘ |
| geologicPeriod | Triassic ⓘ |
| hasSedimentaryStructures |
lamination
ⓘ
mud cracks ⓘ ripple marks ⓘ |
| knownFor |
colorful mudstones
ⓘ
fossil preservation ⓘ limestones ⓘ |
| lithology |
limestone
ⓘ
mudstone ⓘ |
| locatedIn | southwestern United States NERFINISHED ⓘ |
| namedFor | Owl Rock NERFINISHED ⓘ |
| overlies | Petrified Forest Member NERFINISHED ⓘ |
| paleoclimateIndicator | semi-arid conditions ⓘ |
| partOf | Chinle Formation NERFINISHED ⓘ |
| preserves |
lacustrine fossils
ⓘ
terrestrial fossils ⓘ |
| region | Colorado Plateau NERFINISHED ⓘ |
| researchImportance |
Late Triassic terrestrial ecosystems
ⓘ
Triassic lake environments ⓘ |
| stratigraphicHierarchy | member of Chinle Formation ⓘ |
| stratigraphicPosition | upper unit of the Chinle Formation NERFINISHED ⓘ |
| typeOf | continental sedimentary unit ⓘ |
| underlies | Rock Point Member NERFINISHED ⓘ |
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: Owl Rock Member Description of subject: Owl Rock Member is a distinctive upper unit of the Late Triassic Chinle Formation, known for its colorful mudstones and limestones that preserve important terrestrial and lacustrine fossils in the southwestern United States.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.