Cenozoic
E18786
The Cenozoic is the current geological era, beginning about 66 million years ago, characterized by the rise and diversification of mammals and birds and the formation of many modern mountain ranges and continents.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Cenozoic canonical | 273 |
| Cenozoic Era | 26 |
| Cenozoic era | 16 |
| Cenozoic geologic time scale | 2 |
| Age of Mammals | 1 |
| Neogene period | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T156686 — 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.
Target entity: Cenozoic Context triple: [Atlas Mountains, geologicalAge, Cenozoic]
-
A.
Paleogene
The Paleogene is a geologic period that marks the beginning of the Cenozoic Era, characterized by the diversification of mammals and birds following the mass extinction that ended the age of dinosaurs.
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B.
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.
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C.
Phanerozoic Eon
The Phanerozoic Eon is the current and most recent major division of Earth's history, marked by abundant fossil evidence and the evolution and diversification of complex life forms, including plants, animals, and eventually humans.
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D.
Cretaceous
The Cretaceous was the final period of the Mesozoic Era, marked by high sea levels, diverse dinosaurs, and ending with the mass extinction that wiped them out about 66 million years ago.
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E.
Mesozoic Era
The Mesozoic Era was a major geological era, often called the "Age of Reptiles," during which dinosaurs dominated the land and the supercontinent Pangaea broke apart into modern continents.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Cenozoic Target entity description: The Cenozoic is the current geological era, beginning about 66 million years ago, characterized by the rise and diversification of mammals and birds and the formation of many modern mountain ranges and continents.
-
A.
Paleogene
The Paleogene is a geologic period that marks the beginning of the Cenozoic Era, characterized by the diversification of mammals and birds following the mass extinction that ended the age of dinosaurs.
-
B.
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.
-
C.
Phanerozoic Eon
The Phanerozoic Eon is the current and most recent major division of Earth's history, marked by abundant fossil evidence and the evolution and diversification of complex life forms, including plants, animals, and eventually humans.
-
D.
Cretaceous
The Cretaceous was the final period of the Mesozoic Era, marked by high sea levels, diverse dinosaurs, and ending with the mass extinction that wiped them out about 66 million years ago.
-
E.
Mesozoic Era
The Mesozoic Era was a major geological era, often called the "Age of Reptiles," during which dinosaurs dominated the land and the supercontinent Pangaea broke apart into modern continents.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
eonothem/era in the geologic time scale
ⓘ
geological era ⓘ |
| alsoKnownAs |
Cenozoic
ⓘ
surface form:
Age of Mammals
|
| characterizedBy |
cooling climate
ⓘ
development of modern ecosystems ⓘ diversification of birds ⓘ diversification of mammals ⓘ formation of many modern mountain ranges ⓘ formation of modern continents ⓘ rise of birds ⓘ rise of mammals ⓘ |
| climateTrend |
development of polar ice sheets
ⓘ
overall long-term cooling ⓘ |
| contains |
Anthropocene
ⓘ
surface form:
Anthropocene (proposed epoch)
Paleogene ⓘ
surface form:
Eocene Epoch
Holocene ⓘ
surface form:
Holocene Epoch
Neogene ⓘ
surface form:
Miocene Epoch
Paleogene ⓘ
surface form:
Oligocene Epoch
Paleogene ⓘ
surface form:
Paleocene Epoch
Pleistocene epoch ⓘ
surface form:
Pleistocene Epoch
Pliocene epoch ⓘ
surface form:
Pliocene Epoch
|
| dominantFlyingVertebrates | birds ⓘ |
| dominantTerrestrialVertebrates | mammals ⓘ |
| durationApprox | 66 million years to present ⓘ |
| follows |
Mesozoic Era
ⓘ
surface form:
Mesozoic
|
| includesEvent |
Alpine orogeny
ⓘ
Andean orogeny ⓘ Cenozoic glaciations ⓘ Himalayan orogeny ⓘ Pleistocene epoch ⓘ
surface form:
Pleistocene ice ages
closure of the Tethys Ocean ⓘ evolution of hominins ⓘ expansion of grasslands ⓘ formation of the Isthmus of Panama ⓘ opening of the Atlantic Ocean to near-modern configuration ⓘ origin of the genus Homo ⓘ |
| marineLifeTrend | modernization of marine faunas ⓘ |
| partOf | Phanerozoic Eon ⓘ |
| plantEvolutionTrend |
radiation of grasses
ⓘ
spread of angiosperms ⓘ |
| plateTectonicsFeature |
collision of India with Asia
ⓘ
continued breakup and dispersal of Gondwana fragments ⓘ uplift of the Tibetan Plateau ⓘ |
| precededBy | Mesozoic Era ⓘ |
| startEvent |
Cretaceous–Paleogene boundary
ⓘ
surface form:
Cretaceous–Paleogene extinction event
|
| startsAt | 66 million years ago ⓘ |
| subdividedInto |
Neogene
ⓘ
surface form:
Neogene Period
Paleogene ⓘ
surface form:
Paleogene Period
Quaternary period ⓘ
surface form:
Quaternary Period
|
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.
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.
Subject: Cenozoic Description of subject: The Cenozoic is the current geological era, beginning about 66 million years ago, characterized by the rise and diversification of mammals and birds and the formation of many modern mountain ranges and continents.
Referenced by (319)
Full triples — surface form annotated when it differs from this entity's canonical label.