Lochkovian Epoch
E538404
The Lochkovian Epoch is the earliest subdivision of the Devonian Period, marking a time of significant diversification in early fish and terrestrial ecosystems.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Lochkovian Stage | 4 |
| Lochkovian stage | 2 |
| Lochkovian Age | 1 |
| Lochkovian Epoch canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5631599 — 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: Lochkovian Epoch Context triple: [Pridoli Epoch, precedes, Lochkovian Epoch]
-
A.
Lopingian Epoch
The Lopingian Epoch is the final subdivision of the Permian Period, marked by significant evolutionary changes and culminating in the largest mass extinction event in Earth's history.
-
B.
Cisuralian Epoch
The Cisuralian Epoch is the earliest subdivision of the Permian, marking a time of significant diversification of terrestrial life and continued development of early amniotes following the late Paleozoic ice age.
-
C.
Pridoli Epoch
The Pridoli Epoch is the final epoch of the Silurian Period, marking a transitional interval in Earth’s history just before the onset of the Devonian.
-
D.
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.
-
E.
Terreneuvian
The Terreneuvian is the earliest age of the Cambrian Period, marking the beginning of the Phanerozoic Eon and the widespread appearance of complex animal life in the fossil record.
- 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: Lochkovian Epoch Target entity description: The Lochkovian Epoch is the earliest subdivision of the Devonian Period, marking a time of significant diversification in early fish and terrestrial ecosystems.
-
A.
Lopingian Epoch
The Lopingian Epoch is the final subdivision of the Permian Period, marked by significant evolutionary changes and culminating in the largest mass extinction event in Earth's history.
-
B.
Cisuralian Epoch
The Cisuralian Epoch is the earliest subdivision of the Permian, marking a time of significant diversification of terrestrial life and continued development of early amniotes following the late Paleozoic ice age.
-
C.
Pridoli Epoch
The Pridoli Epoch is the final epoch of the Silurian Period, marking a transitional interval in Earth’s history just before the onset of the Devonian.
-
D.
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.
-
E.
Terreneuvian
The Terreneuvian is the earliest age of the Cambrian Period, marking the beginning of the Phanerozoic Eon and the widespread appearance of complex animal life in the fossil record.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
geologic epoch
ⓘ
stratigraphic unit ⓘ |
| chronostratigraphicEquivalent |
Lochkovian Age
ⓘ
linked to:
Lochkovian Epoch
|
| correspondsTo |
Lower Devonian Series
ⓘ
linked to:
Early Devonian
|
| end | 410.8 million years ago ⓘ |
| endUncertainty | ±2.8 million years ⓘ |
| environmentalContext |
generally warm global climate
ⓘ
high sea levels ⓘ |
| follows | Pridoli Epoch ⓘ |
| fossilAssemblagesCharacteristic |
conodont faunas
ⓘ
early fish fossils ⓘ graptolite faunas ⓘ |
| geologicTimeScaleEon | Phanerozoic Eon ⓘ |
| geologicTimeScaleEra | Paleozoic Era ⓘ |
| ICSColorCode | Devonian standard color (greenish) ⓘ |
| lithostratigraphicCorrelation | Lochkov Formation in the Prague Basin ⓘ |
| lowerBoundaryDefinedAt | Klonk Section ⓘ |
| lowerBoundaryDefinedBy | first appearance datum of the graptolite Monograptus uniformis ⓘ |
| lowerBoundaryLocation | Klonk, near Suchomasty, Czech Republic ⓘ |
| lowerBoundaryType | Global Boundary Stratotype Section and Point ⓘ |
| majorBiologicalEvent |
development of early terrestrial ecosystems
ⓘ
diversification of early jawed fishes ⓘ diversification of early lobe-finned fishes ⓘ expansion of early terrestrial plant communities ⓘ radiation of early placoderms ⓘ |
| marineEcosystemFeature | diverse reef and shelf communities ⓘ |
| namedAfter | Lochkov ⓘ |
| namedFor |
Lochkov, Prague, Czech Republic
ⓘ
linked to:
Lochkov, Czech Republic
|
| partOf |
Devonian Period
ⓘ
Early Devonian Epoch ⓘ
linked to:
Early Devonian
|
| plantEvolutionSignificance | spread of early vascular plants onto land ⓘ |
| positionInDevonian | earliest epoch of the Devonian ⓘ |
| precedes | Pragian Epoch ⓘ |
| start | 419.2 million years ago ⓘ |
| startUncertainty | ±3.2 million years ⓘ |
| stratigraphicRank | epoch ⓘ |
| timeScale | International Commission on Stratigraphy ⓘ |
| upperBoundaryDefinedBy |
first appearance datum of the conodont Eognathodus sulcatus
ⓘ
first appearance datum of the conodont Latericriodus steinachensis ⓘ |
| upperBoundaryType | Global Boundary Stratotype Section and Point ⓘ |
| usedIn |
chronostratigraphy
ⓘ
geologic mapping ⓘ paleontological correlation ⓘ |
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: Lochkovian Epoch Description of subject: The Lochkovian Epoch is the earliest subdivision of the Devonian Period, marking a time of significant diversification in early fish and terrestrial ecosystems.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Lochkovian Epoch
Global Boundary Stratotype Section and Point at Klonk, Czech Republic
→
marksBaseOf
→
Lochkovian Stage
ⓘ
linked to: Lochkovian Epoch
linked to: Lochkovian Epoch
linked to: Lochkovian Epoch
subject linked to:
Lochkov, Czech Republic
linked to: Lochkovian Epoch
linked to: Lochkovian Epoch
linked to: Lochkovian Epoch