Global Boundary Stratotype Section and Point for the base of the Anisian
E739707
Global Boundary Stratotype Section and Point
chronostratigraphic reference point
geological boundary stratotype
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Global Boundary Stratotype Section and Point for the base of the Anisian canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8519979 — 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 the base of the Anisian Context triple: [Middle Triassic, definedBy, Global Boundary Stratotype Section and Point for the base of the Anisian]
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A.
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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B.
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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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.
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D.
Givetian–Frasnian boundary
The Givetian–Frasnian boundary marks the internationally recognized stratigraphic transition between the Middle and Late Devonian periods, defined by specific fossil and sedimentary changes in the geologic record.
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E.
Emsian–Eifelian boundary
The Emsian–Eifelian boundary marks the internationally recognized transition between the Early and Middle Devonian periods in the geologic timescale.
- 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 the base of the Anisian Target entity description: 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.
-
A.
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.
-
B.
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.
-
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.
Givetian–Frasnian boundary
The Givetian–Frasnian boundary marks the internationally recognized stratigraphic transition between the Middle and Late Devonian periods, defined by specific fossil and sedimentary changes in the geologic record.
-
E.
Emsian–Eifelian boundary
The Emsian–Eifelian boundary marks the internationally recognized transition between the Early and Middle Devonian periods in the geologic timescale.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
Global Boundary Stratotype Section and Point
ⓘ
chronostratigraphic reference point ⓘ geological boundary stratotype ⓘ |
| appliesTo |
continental stratigraphic successions
ⓘ
marine stratigraphic successions ⓘ |
| approvedBy |
International Commission on Stratigraphy
ⓘ
International Union of Geological Sciences ⓘ |
| category |
geological time boundary
ⓘ
stratigraphic standard ⓘ |
| correlatesWith | base of Middle Triassic Epoch ⓘ |
| correspondsTo |
base of Anisian Age
ⓘ
base of Anisian Stage ⓘ |
| defines | base of Middle Triassic in geologic time scale ⓘ |
| definesBaseOf |
Anisian Stage
ⓘ
Middle Triassic Series ⓘ
linked to:
Middle Triassic
|
| definesBoundaryBetween |
Anisian Stage
ⓘ
Olenekian Stage ⓘ |
| hasRank | stage boundary GSSP ⓘ |
| hasScope | global ⓘ |
| hasTemporalPosition |
after Olenekian
ⓘ
before Ladinian ⓘ |
| isFormalReferencePointFor |
Anisian Stage base
ⓘ
onset of Middle Triassic ⓘ |
| isGlobalStandardFor | base of Anisian worldwide ⓘ |
| isReferencedIn |
International Stratigraphic Guide
ⓘ
linked to:
International Stratigraphic Guide framework
|
| liesWithin |
Mesozoic Era
ⓘ
Triassic System ⓘ
linked to:
Triassic
|
| marksBaseOf | Anisian Stage ⓘ |
| marksOnsetOf |
Anisian Stage
ⓘ
Middle Triassic ⓘ |
| partOf | International Chronostratigraphic Chart ⓘ |
| relatesTo |
Anisian biostratigraphy
ⓘ
Triassic chronostratigraphy ⓘ |
| standardType | GSSP ⓘ |
| usedFor |
global chronostratigraphic correlation
ⓘ
standardization of Triassic time scale ⓘ |
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 the base of the Anisian Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Middle Triassic
→
definedBy
→
Global Boundary Stratotype Section and Point for the base of the Anisian
ⓘ