Sakmarian stage of the Permian
E1197059
UNEXPLORED
The Sakmarian stage of the Permian is an early subdivision of the Permian Period characterized by distinctive marine and terrestrial fossil assemblages and significant global climatic and sea-level changes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sakmarian stage of the Permian canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16171216 — 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: Sakmarian stage of the Permian Context triple: [Asselian, underlies, Sakmarian stage of the Permian]
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A.
Famennian stage
The Famennian stage is the final stage of the Late Devonian Period, marked by significant evolutionary turnover and recovery following major extinction events.
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B.
Rhaetian Stage
The Rhaetian Stage is the final stage of the Late Triassic period, marked by significant marine extinctions and preceding the Triassic–Jurassic boundary.
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C.
Siderian Period
The Siderian Period is the earliest division of the Paleoproterozoic, marked by widespread banded iron formation deposition and the initial rise of atmospheric oxygen on Earth.
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D.
Givetian stage
The Givetian stage is a middle subdivision of the Devonian Period characterized by significant marine biodiversity and reef development before the late Devonian extinction events.
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E.
Guadalupian Epoch
The Guadalupian Epoch is a middle subdivision of the Permian characterized by significant marine biodiversity followed by major ecological changes leading toward the end-Permian mass extinction.
- 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: Sakmarian stage of the Permian Target entity description: The Sakmarian stage of the Permian is an early subdivision of the Permian Period characterized by distinctive marine and terrestrial fossil assemblages and significant global climatic and sea-level changes.
-
A.
Famennian stage
The Famennian stage is the final stage of the Late Devonian Period, marked by significant evolutionary turnover and recovery following major extinction events.
-
B.
Rhaetian Stage
The Rhaetian Stage is the final stage of the Late Triassic period, marked by significant marine extinctions and preceding the Triassic–Jurassic boundary.
-
C.
Siderian Period
The Siderian Period is the earliest division of the Paleoproterozoic, marked by widespread banded iron formation deposition and the initial rise of atmospheric oxygen on Earth.
-
D.
Givetian stage
The Givetian stage is a middle subdivision of the Devonian Period characterized by significant marine biodiversity and reef development before the late Devonian extinction events.
-
E.
Guadalupian Epoch
The Guadalupian Epoch is a middle subdivision of the Permian characterized by significant marine biodiversity followed by major ecological changes leading toward the end-Permian mass extinction.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.