subcommission on Ordovician stratigraphy
E680752
The Subcommission on Ordovician Stratigraphy is an expert body that oversees the global standardization, correlation, and formal definition of Ordovician rock units and time intervals within the international geologic timescale.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Subcommission on Ordovician Stratigraphy | 1 |
| subcommission on Ordovician stratigraphy canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7677498 — 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: subcommission on Ordovician stratigraphy Context triple: [International Commission on Stratigraphy, hasPart, subcommission on Ordovician stratigraphy]
-
A.
International Commission on Stratigraphy
The International Commission on Stratigraphy is the global scientific authority responsible for defining and standardizing the geological time scale and stratigraphic units used in Earth sciences.
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B.
Commission on Tectonics and Structural Geology
The Commission on Tectonics and Structural Geology is a specialized scientific body that promotes international research, collaboration, and standards in the study of Earth's tectonic processes and deformation structures.
-
C.
Global Boundary Stratotype Section and Point for base of Hettangian
The Global Boundary Stratotype Section and Point for the base of the Hettangian is the internationally agreed geological reference point that marks the formal beginning of the Jurassic Period and the Mesozoic era’s post-Triassic recovery interval.
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D.
Middle Ordovician
The Middle Ordovician is a subdivision of the Ordovician Period characterized by significant diversification of marine life and widespread shallow epicontinental seas.
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E.
Late Ordovician
The Late Ordovician was the final subdivision of the Ordovician Period, marked by extensive marine biodiversity followed by one of the largest mass extinction events in Earth's history.
- 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: subcommission on Ordovician stratigraphy Target entity description: The Subcommission on Ordovician Stratigraphy is an expert body that oversees the global standardization, correlation, and formal definition of Ordovician rock units and time intervals within the international geologic timescale.
-
A.
International Commission on Stratigraphy
The International Commission on Stratigraphy is the global scientific authority responsible for defining and standardizing the geological time scale and stratigraphic units used in Earth sciences.
-
B.
Commission on Tectonics and Structural Geology
The Commission on Tectonics and Structural Geology is a specialized scientific body that promotes international research, collaboration, and standards in the study of Earth's tectonic processes and deformation structures.
-
C.
Global Boundary Stratotype Section and Point for base of Hettangian
The Global Boundary Stratotype Section and Point for the base of the Hettangian is the internationally agreed geological reference point that marks the formal beginning of the Jurassic Period and the Mesozoic era’s post-Triassic recovery interval.
-
D.
Middle Ordovician
The Middle Ordovician is a subdivision of the Ordovician Period characterized by significant diversification of marine life and widespread shallow epicontinental seas.
-
E.
Late Ordovician
The Late Ordovician was the final subdivision of the Ordovician Period, marked by extensive marine biodiversity followed by one of the largest mass extinction events in Earth's history.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
expert body
ⓘ
scientific commission ⓘ stratigraphic subcommission ⓘ |
| activity |
evaluation of candidate stratotype sections
ⓘ
publication of Ordovician stratigraphic charts ⓘ ratification proposals for Ordovician stage boundaries ⓘ |
| appliesTo |
international geologic timescale
ⓘ
linked to:
International Chronostratigraphic Chart
|
| collaboratesWith |
national stratigraphic committees
ⓘ
regional Ordovician working groups ⓘ |
| composedOf |
Ordovician stratigraphy experts
ⓘ
corresponding members ⓘ voting members ⓘ |
| concerns |
Ordovician rock units
ⓘ
Ordovician time intervals ⓘ |
| defines |
boundaries of Ordovician series
ⓘ
boundaries of the Ordovician System ⓘ global boundary stratotype section and points for Ordovician stages ⓘ |
| field |
Ordovician stratigraphy
ⓘ
geology ⓘ stratigraphy ⓘ |
| focusesOn |
Ordovician Period
ⓘ
Ordovician System ⓘ
linked to:
Ordovician Period
|
| goal |
achieve consistent global correlation of Ordovician strata
ⓘ
provide a formal chronostratigraphic framework for the Ordovician ⓘ |
| hasWorkingLanguage | English ⓘ |
| influences |
geochronologic dating of Ordovician rocks
ⓘ
paleontological correlation of Ordovician fossils ⓘ regional Ordovician stratigraphic schemes ⓘ |
| meets | periodically ⓘ |
| oversees | formal subdivision of the Ordovician into series and stages ⓘ |
| partOf |
International Commission on Stratigraphy
ⓘ
International Union of Geological Sciences ⓘ |
| purpose |
correlation of Ordovician rock units worldwide
ⓘ
formal definition of Ordovician time intervals ⓘ global standardization of Ordovician stratigraphy ⓘ maintenance of the international geologic timescale for the Ordovician system ⓘ |
| regulates | nomenclature of Ordovician chronostratigraphic units ⓘ |
| relatedTo |
Subcommission on Cambrian Stratigraphy
ⓘ
Subcommission on Silurian Stratigraphy ⓘ
linked to:
subcommission on Silurian stratigraphy
|
| scope | global ⓘ |
| standardizes |
Ordovician chronostratigraphic units
ⓘ
Ordovician geochronologic units ⓘ Ordovician stratigraphic boundaries ⓘ |
| subjectOf | international stratigraphic guidelines ⓘ |
| uses |
Global Boundary Stratotype Section and Point concept
ⓘ
linked to:
Global Boundary Stratotype Section and Point
|
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: subcommission on Ordovician stratigraphy Description of subject: The Subcommission on Ordovician Stratigraphy is an expert body that oversees the global standardization, correlation, and formal definition of Ordovician rock units and time intervals within the international geologic timescale.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
ICS
subject linked to:
subcommission on Silurian stratigraphy
linked to: subcommission on Ordovician stratigraphy