Late Miocene
E267262
The Late Miocene is the final epochal stage of the Miocene, marked by significant global cooling, grassland expansion, and the evolution and diversification of many modern mammal and primate lineages.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Late Miocene canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2403610 — 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: Late Miocene Context triple: [Neogene, subdividedInto, Late Miocene]
-
A.
Middle Miocene
The Middle Miocene is a subdivision of the Miocene Epoch characterized by significant global climatic shifts, including a major warming phase followed by cooling, and important stages in mammalian evolution and marine biodiversity.
-
B.
Miocene
The Miocene is a geologic epoch of the Neogene Period characterized by significant global cooling, expansion of grasslands, and diversification of mammals and early apes.
-
C.
Early Miocene
The Early Miocene was an epoch of the Neogene Period marked by significant global warming, diversification of mammals and marine life, and major tectonic and climatic changes that shaped modern ecosystems.
-
D.
Pliocene epoch
The Pliocene epoch was a geological time period roughly 5.3 to 2.6 million years ago marked by cooler global climates, the expansion of grasslands, and significant evolutionary developments among mammals and early hominins.
-
E.
Neogene
The Neogene is a geologic period of the Cenozoic Era characterized by significant climatic cooling, the diversification of mammals and birds, and the emergence and evolution of early hominins.
- 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: Late Miocene Target entity description: The Late Miocene is the final epochal stage of the Miocene, marked by significant global cooling, grassland expansion, and the evolution and diversification of many modern mammal and primate lineages.
-
A.
Middle Miocene
The Middle Miocene is a subdivision of the Miocene Epoch characterized by significant global climatic shifts, including a major warming phase followed by cooling, and important stages in mammalian evolution and marine biodiversity.
-
B.
Miocene
The Miocene is a geologic epoch of the Neogene Period characterized by significant global cooling, expansion of grasslands, and diversification of mammals and early apes.
-
C.
Early Miocene
The Early Miocene was an epoch of the Neogene Period marked by significant global warming, diversification of mammals and marine life, and major tectonic and climatic changes that shaped modern ecosystems.
-
D.
Pliocene epoch
The Pliocene epoch was a geological time period roughly 5.3 to 2.6 million years ago marked by cooler global climates, the expansion of grasslands, and significant evolutionary developments among mammals and early hominins.
-
E.
Neogene
The Neogene is a geologic period of the Cenozoic Era characterized by significant climatic cooling, the diversification of mammals and birds, and the emergence and evolution of early hominins.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
age
ⓘ
age ⓘ geologic epoch ⓘ paleoenvironmental event ⓘ subdivision of the Miocene ⓘ |
| associatedWith |
Messinian Salinity Crisis (late Miocene)
ⓘ
surface form:
Messinian Salinity Crisis
appearance of more terrestrial apes in Africa and Eurasia ⓘ |
| characterizedBy |
decline of some forest-adapted species
ⓘ
development of open woodland and savanna habitats ⓘ diversification of primates ⓘ evolution of modern mammal lineages ⓘ global cooling ⓘ grassland expansion ⓘ increased aridity in many regions ⓘ partial desiccation of the Mediterranean Sea ⓘ |
| climateTrend |
increasing seasonality in many regions
ⓘ
overall cooling relative to earlier Miocene ⓘ |
| definedBy | Global Boundary Stratotype Section and Point ⓘ |
| endTime |
about 5.33 million years ago
ⓘ
approximately 5.333 million years ago ⓘ |
| follows | Middle Miocene ⓘ |
| GSSPLocationForBase | Monte dei Corvi section, Italy (Tortonian base) ⓘ |
| GSSPLocationForTop | Oued Akrech section, Morocco (base of Zanclean, Pliocene) ⓘ |
| hasSubdivision |
Messinian
ⓘ
Tortonian ⓘ |
| importantFor |
evolution of early hominins
ⓘ
faunal turnover in many continental regions ⓘ |
| linkedTo |
changes in ocean circulation
ⓘ
growth of Antarctic ice sheets ⓘ |
| memberOf |
Cenozoic
ⓘ
surface form:
Cenozoic Era
Neogene ⓘ
surface form:
Neogene Period
|
| partOf |
Late Miocene
ⓘ
Late Miocene ⓘ Miocene ⓘ |
| precedes | Pliocene ⓘ |
| sawDeclineOf | some subtropical and tropical forests ⓘ |
| sawDiversificationOf |
bovids
ⓘ
cervids ⓘ equids ⓘ hominids ⓘ modern carnivoran lineages ⓘ |
| sawExpansionOf |
C4 grasslands in low-latitude regions
ⓘ
savanna ecosystems in Africa ⓘ steppe environments in Eurasia ⓘ |
| startTime |
about 5.96 million years ago
ⓘ
approximately 11.63 million years ago ⓘ |
| usedIn | stratigraphy ⓘ |
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: Late Miocene Description of subject: The Late Miocene is the final epochal stage of the Miocene, marked by significant global cooling, grassland expansion, and the evolution and diversification of many modern mammal and primate lineages.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.