Global Boundary Stratotype Section and Point for base at Peniche, Portugal
E834870
Global Boundary Stratotype Section and Point
geological reference section
stratigraphic boundary marker
The Global Boundary Stratotype Section and Point for base at Peniche, Portugal is the internationally agreed reference rock section that marks the official lower boundary and start of the Toarcian stage of the Early Jurassic.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Global Boundary Stratotype Section and Point for base at Peniche, Portugal canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10017432 — 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: Global Boundary Stratotype Section and Point for base at Peniche, Portugal Context triple: [Toarcian, definedBy, Global Boundary Stratotype Section and Point for base at Peniche, Portugal]
-
A.
Global Boundary Stratotype Section and Point
The Global Boundary Stratotype Section and Point (GSSP) is an internationally agreed reference point in a specific rock sequence that precisely defines the lower boundary of a stage or age in the geologic time scale.
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B.
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.
-
C.
Global Boundary Stratotype Section and Point at Klonk, Czech Republic
The Global Boundary Stratotype Section and Point at Klonk in the Czech Republic is a formally designated geological reference site that marks the internationally agreed base of the Devonian System and serves as a key standard for correlating Early Devonian rock strata worldwide.
-
D.
Global Boundary Stratotype Section and Point for the base of the Anisian
The Global Boundary Stratotype Section and Point for the base of the Anisian is the internationally agreed geological reference point that marks the beginning of the Anisian Stage and thus the formal onset of the Middle Triassic.
-
E.
International Chronostratigraphic Chart
The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological 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: Global Boundary Stratotype Section and Point for base at Peniche, Portugal Target entity description: The Global Boundary Stratotype Section and Point for base at Peniche, Portugal is the internationally agreed reference rock section that marks the official lower boundary and start of the Toarcian stage of the Early Jurassic.
-
A.
Global Boundary Stratotype Section and Point
The Global Boundary Stratotype Section and Point (GSSP) is an internationally agreed reference point in a specific rock sequence that precisely defines the lower boundary of a stage or age in the geologic time scale.
-
B.
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.
-
C.
Global Boundary Stratotype Section and Point at Klonk, Czech Republic
The Global Boundary Stratotype Section and Point at Klonk in the Czech Republic is a formally designated geological reference site that marks the internationally agreed base of the Devonian System and serves as a key standard for correlating Early Devonian rock strata worldwide.
-
D.
Global Boundary Stratotype Section and Point for the base of the Anisian
The Global Boundary Stratotype Section and Point for the base of the Anisian is the internationally agreed geological reference point that marks the beginning of the Anisian Stage and thus the formal onset of the Middle Triassic.
-
E.
International Chronostratigraphic Chart
The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological history.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
Global Boundary Stratotype Section and Point
ⓘ
geological reference section ⓘ stratigraphic boundary marker ⓘ |
| chronostratigraphicPosition | base of Toarcian Stage in the Jurassic System ⓘ |
| correlatesWithin | Early Jurassic ⓘ |
| correspondsTo | base of Toarcian Stage ⓘ |
| definedIn | stratotype section at Peniche ⓘ |
| discipline |
geology
ⓘ
stratigraphy ⓘ |
| governingBody | Subcommission on Jurassic Stratigraphy ⓘ |
| hasGlobalStatus | official international stratigraphic boundary ⓘ |
| hasStratigraphicRank | stage boundary ⓘ |
| isReferenceSectionFor |
Early Jurassic paleoenvironmental studies
ⓘ
Toarcian ammonite biostratigraphy ⓘ |
| liesAbove | Global Boundary Stratotype Section and Point for base of Pliensbachian Stage (if defined elsewhere) ⓘ |
| locatedIn |
Peniche
ⓘ
Portugal ⓘ |
| locatedOn | Atlantic coast of Portugal ⓘ |
| marksBaseOf |
Toarcian Stage
ⓘ
linked to:
Toarcian
|
| marksBoundaryBetween |
Pliensbachian Stage
ⓘ
linked to:
Pliensbachian
Toarcian Stage ⓘ
linked to:
Toarcian
|
| marksBoundaryOf |
Toarcian Stage
ⓘ
linked to:
Toarcian
|
| marksStartOf |
Toarcian Stage
ⓘ
linked to:
Toarcian
|
| partOf |
Peniche section
ⓘ
linked to:
Peniche
|
| ratifiedBy |
International Commission on Stratigraphy
ⓘ
International Union of Geological Sciences ⓘ |
| referenceFor |
Toarcian Stage base worldwide
ⓘ
linked to:
Toarcian
|
| timeInterval |
Early Jurassic
ⓘ
Mesozoic Era ⓘ |
| usedFor |
definition of Toarcian Stage lower boundary
ⓘ
global chronostratigraphic correlation ⓘ |
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: Global Boundary Stratotype Section and Point for base at Peniche, Portugal Description of subject: The Global Boundary Stratotype Section and Point for base at Peniche, Portugal is the internationally agreed reference rock section that marks the official lower boundary and start of the Toarcian stage of the Early Jurassic.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.