Devonian Period
E91781
The Devonian Period was a division of the Paleozoic Era characterized by the diversification of fish, the first significant colonization of land by plants and early tetrapods, and major reef-building in the oceans.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Devonian Period canonical | 13 |
| Devonian period | 13 |
| Devonian | 2 |
| Devonian System | 1 |
| Devonian_period | 1 |
| Frasnian | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T657892 — 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: Devonian Period Context triple: [Phanerozoic Eon, contains, Devonian Period]
-
A.
Ordovician Period
The Ordovician Period was a Paleozoic era interval marked by extensive marine biodiversity, the diversification of early vertebrates and invertebrates, and ending with one of Earth's major mass extinction events.
-
B.
Silurian
The Silurian is a geologic period of the Paleozoic Era, roughly 443 to 419 million years ago, marked by the stabilization of Earth’s climate, widespread shallow seas, and significant diversification of early marine life and the first land plants.
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C.
Early Devonian
The Early Devonian was the initial subdivision of the Devonian Period, marked by the diversification of early fishes and the spread of primitive vascular land plants across emerging terrestrial ecosystems.
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D.
Paleozoic Era
The Paleozoic Era was an ancient geologic time interval, spanning roughly 541 to 252 million years ago, marked by the emergence and diversification of complex life in the seas and on land and the assembly of major continental landmasses.
-
E.
Cambrian Period
The Cambrian Period was an early division of geologic time marked by a rapid diversification of life known as the "Cambrian explosion," during which most major animal groups first appeared in the fossil record.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Devonian Period Target entity description: The Devonian Period was a division of the Paleozoic Era characterized by the diversification of fish, the first significant colonization of land by plants and early tetrapods, and major reef-building in the oceans.
-
A.
Ordovician Period
The Ordovician Period was a Paleozoic era interval marked by extensive marine biodiversity, the diversification of early vertebrates and invertebrates, and ending with one of Earth's major mass extinction events.
-
B.
Silurian
The Silurian is a geologic period of the Paleozoic Era, roughly 443 to 419 million years ago, marked by the stabilization of Earth’s climate, widespread shallow seas, and significant diversification of early marine life and the first land plants.
-
C.
Early Devonian
The Early Devonian was the initial subdivision of the Devonian Period, marked by the diversification of early fishes and the spread of primitive vascular land plants across emerging terrestrial ecosystems.
-
D.
Paleozoic Era
The Paleozoic Era was an ancient geologic time interval, spanning roughly 541 to 252 million years ago, marked by the emergence and diversification of complex life in the seas and on land and the assembly of major continental landmasses.
-
E.
Cambrian Period
The Cambrian Period was an early division of geologic time marked by a rapid diversification of life known as the "Cambrian explosion," during which most major animal groups first appeared in the fossil record.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
geological period
ⓘ
stratigraphic unit ⓘ |
| characterizedBy |
diversification of fish
ⓘ
early tetrapod evolution ⓘ first significant colonization of land by plants ⓘ major reef-building in oceans ⓘ |
| climate |
generally warm
ⓘ
high sea levels ⓘ |
| containsAge |
Eifelian
ⓘ
Emsian ⓘ Famennian ⓘ Devonian Period self-linksurface differs ⓘ
surface form:
Frasnian
Givetian ⓘ Lochkovian ⓘ Pragian ⓘ |
| definedBy | International Commission on Stratigraphy ⓘ |
| duration | about 60 million years ⓘ |
| end | about 359 million years ago ⓘ |
| endedWith |
Late Devonian extinction
ⓘ
surface form:
Late Devonian extinction events
|
| follows |
Silurian
ⓘ
surface form:
Silurian Period
|
| hasSubdivision |
Early Devonian
ⓘ
Late Devonian ⓘ Middle Devonian ⓘ |
| marineLife |
ammonoid cephalopod radiation
ⓘ
lobe-finned fish diversification ⓘ placoderm fish diversification ⓘ ray-finned fish diversification ⓘ rugose coral reefs ⓘ stromatoporoid reefs ⓘ tabulate coral reefs ⓘ |
| massExtinction |
Late Devonian extinction
ⓘ
surface form:
Frasnian–Famennian extinction event
Late Devonian extinction ⓘ
surface form:
Hangenberg event
Kellwasser events ⓘ |
| namedAfter |
Devon
ⓘ
surface form:
Devon, England
|
| namedBy |
Adam Sedgwick
ⓘ
Roderick Murchison ⓘ |
| nicknamed | Age of Fishes ⓘ |
| paleogeography |
Acadian orogeny
ⓘ
Gondwana ⓘ
surface form:
Gondwana supercontinent
Laurussia continent ⓘ Variscan orogeny initiation ⓘ closing of Iapetus Ocean ⓘ |
| partOf | Paleozoic Era ⓘ |
| precedes |
Carboniferous period
ⓘ
surface form:
Carboniferous Period
|
| start | about 419 million years ago ⓘ |
| terrestrialLife |
arthropod colonization of land
ⓘ
early forests ⓘ early tetrapods ⓘ first seed plants ⓘ vascular plant diversification ⓘ |
| typeLocality |
Devon
ⓘ
surface form:
Devon, England
|
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: Devonian Period Description of subject: The Devonian Period was a division of the Paleozoic Era characterized by the diversification of fish, the first significant colonization of land by plants and early tetrapods, and major reef-building in the oceans.
Referenced by (31)
Full triples — surface form annotated when it differs from this entity's canonical label.