Paleogene climatic optimums
E262866
Paleogene climatic optimums were intervals of exceptionally warm global climate during the Paleogene Period that set the stage for the cooler conditions of the subsequent Neogene.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Early Eocene Climatic Optimum | 1 |
| Middle Eocene Climatic Optimum | 1 |
| Paleogene climatic optimums canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2403586 — 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: Paleogene climatic optimums Context triple: [Neogene, precededBy, Paleogene climatic optimums]
-
A.
Eocene–Oligocene climate transition
The Eocene–Oligocene climate transition was a major global cooling event around 34 million years ago that marked the shift from a greenhouse to an icehouse Earth, including the formation of large Antarctic ice sheets.
-
B.
Holocene climatic optimum
The Holocene climatic optimum was a warm period roughly 9,000–5,000 years ago when global temperatures, especially in the Northern Hemisphere, were higher than today, influencing the spread of forests and early human civilizations.
-
C.
Cenozoic glaciations
Cenozoic glaciations are a series of major ice age cycles during the Cenozoic Era that saw extensive growth and retreat of continental ice sheets, profoundly shaping Earth’s climate and landscapes.
-
D.
Snowball Earth glaciations
Snowball Earth glaciations were extreme global-scale ice ages in the Precambrian when ice sheets may have covered most or all of Earth’s surface for millions of years.
-
E.
Milankovitch cycles
Milankovitch cycles are long-term variations in Earth’s orbit and axial tilt that drive natural climate fluctuations, including the timing of ice ages.
- 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: Paleogene climatic optimums Target entity description: Paleogene climatic optimums were intervals of exceptionally warm global climate during the Paleogene Period that set the stage for the cooler conditions of the subsequent Neogene.
-
A.
Eocene–Oligocene climate transition
The Eocene–Oligocene climate transition was a major global cooling event around 34 million years ago that marked the shift from a greenhouse to an icehouse Earth, including the formation of large Antarctic ice sheets.
-
B.
Holocene climatic optimum
The Holocene climatic optimum was a warm period roughly 9,000–5,000 years ago when global temperatures, especially in the Northern Hemisphere, were higher than today, influencing the spread of forests and early human civilizations.
-
C.
Cenozoic glaciations
Cenozoic glaciations are a series of major ice age cycles during the Cenozoic Era that saw extensive growth and retreat of continental ice sheets, profoundly shaping Earth’s climate and landscapes.
-
D.
Snowball Earth glaciations
Snowball Earth glaciations were extreme global-scale ice ages in the Precambrian when ice sheets may have covered most or all of Earth’s surface for millions of years.
-
E.
Milankovitch cycles
Milankovitch cycles are long-term variations in Earth’s orbit and axial tilt that drive natural climate fluctuations, including the timing of ice ages.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
climatic interval
ⓘ
paleoclimate event ⓘ |
| associatedWith |
changes in ocean circulation
ⓘ
elevated global mean temperature ⓘ high atmospheric CO2 levels ⓘ intensified hydrological cycle ⓘ mammalian diversification ⓘ ocean acidification events ⓘ reduced polar ice ⓘ widespread biotic dispersal ⓘ |
| contributedTo | establishment of later Neogene icehouse conditions ⓘ |
| followedBy | Neogene cooling ⓘ |
| hasCharacteristic | exceptionally warm global climate ⓘ |
| hasComponent |
Paleogene climatic optimums
self-linksurface differs
ⓘ
surface form:
Early Eocene Climatic Optimum
Paleocene–Eocene Thermal Maximum ⓘ
surface form:
Late Paleocene Thermal Maximum
Paleogene climatic optimums self-linksurface differs ⓘ
surface form:
Middle Eocene Climatic Optimum
Paleocene–Eocene Thermal Maximum ⓘ |
| hasTemporalRelation | early Cenozoic greenhouse climate ⓘ |
| influenced | long‑term Cenozoic climate evolution ⓘ |
| occursIn |
Cenozoic
ⓘ
surface form:
Cenozoic Era
Eocene ⓘ
surface form:
Eocene Epoch
Paleocene ⓘ
surface form:
Paleocene Epoch
|
| partOf |
Paleogene
ⓘ
surface form:
Paleogene Period
|
| precededBy | Late Cretaceous climate ⓘ |
| relevantFor |
analogy for future anthropogenic warming scenarios
ⓘ
understanding long‑term carbon cycle feedbacks ⓘ |
| studiedUsing |
foraminiferal assemblages
ⓘ
marine sediment cores ⓘ paleosol carbonates ⓘ stable isotope records ⓘ terrestrial plant fossils ⓘ |
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: Paleogene climatic optimums Description of subject: Paleogene climatic optimums were intervals of exceptionally warm global climate during the Paleogene Period that set the stage for the cooler conditions of the subsequent Neogene.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Early Eocene Climatic Optimum
this entity surface form:
Middle Eocene Climatic Optimum