International Chronostratigraphic Chart
E43422
The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological history.
All labels observed (14)
How this entity was disambiguated
This entity first appeared as the object of triple T344072 — 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: International Chronostratigraphic Chart Context triple: [Cretaceous–Paleogene boundary, locatedInTimeScale, International Chronostratigraphic Chart]
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A.
International Commission on Stratigraphy
The International Commission on Stratigraphy is the global scientific authority responsible for defining and standardizing the geological time scale and stratigraphic units used in Earth sciences.
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B.
On the Imperfection of the Geological Record
"On the Imperfection of the Geological Record" is a chapter in Charles Darwin's *On the Origin of Species* that addresses why the fossil record is incomplete and how this affects evidence for evolutionary change.
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C.
International Atomic Time
International Atomic Time is a high-precision time standard based on the combined output of atomic clocks worldwide, serving as the fundamental reference for modern civil and scientific timekeeping.
-
D.
Cretaceous–Paleogene boundary
The Cretaceous–Paleogene boundary marks the geological transition 66 million years ago associated with a mass extinction event that wiped out non-avian dinosaurs and many other species, likely triggered by a large asteroid impact.
-
E.
The Geological Evidence of the Antiquity of Man
The Geological Evidence of the Antiquity of Man is an 1863 scientific work by Charles Lyell that marshals geological and fossil evidence to argue for the great age of humanity and to support evolutionary ideas.
- 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: International Chronostratigraphic Chart Target entity description: The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological history.
-
A.
International Commission on Stratigraphy
The International Commission on Stratigraphy is the global scientific authority responsible for defining and standardizing the geological time scale and stratigraphic units used in Earth sciences.
-
B.
On the Imperfection of the Geological Record
"On the Imperfection of the Geological Record" is a chapter in Charles Darwin's *On the Origin of Species* that addresses why the fossil record is incomplete and how this affects evidence for evolutionary change.
-
C.
International Atomic Time
International Atomic Time is a high-precision time standard based on the combined output of atomic clocks worldwide, serving as the fundamental reference for modern civil and scientific timekeeping.
-
D.
Cretaceous–Paleogene boundary
The Cretaceous–Paleogene boundary marks the geological transition 66 million years ago associated with a mass extinction event that wiped out non-avian dinosaurs and many other species, likely triggered by a large asteroid impact.
-
E.
The Geological Evidence of the Antiquity of Man
The Geological Evidence of the Antiquity of Man is an 1863 scientific work by Charles Lyell that marshals geological and fossil evidence to argue for the great age of humanity and to support evolutionary ideas.
- F. None of above. chosen
Statements (58)
| Predicate | Object |
|---|---|
| instanceOf |
chronostratigraphic chart
ⓘ
geologic time scale ⓘ standard reference ⓘ stratigraphic standard ⓘ |
| abbreviation | ICC ⓘ |
| alsoKnownAs |
International Chronostratigraphic Chart
ⓘ
surface form:
International Commission on Stratigraphy International Chronostratigraphic Chart
|
| defines |
ages
ⓘ
chronostratigraphic units ⓘ eons ⓘ epochs ⓘ eras ⓘ formal divisions of Earth history ⓘ geochronologic units ⓘ periods ⓘ |
| feature |
Global Boundary Stratotype Section and Point references
ⓘ
color-coded time intervals ⓘ formal unit names and abbreviations ⓘ numerical age boundaries ⓘ |
| governingBody | International Commission on Stratigraphy ⓘ |
| hasVersion |
International Chronostratigraphic Chart
self-linksurface differs
ⓘ
surface form:
International Chronostratigraphic Chart 2020
International Chronostratigraphic Chart self-linksurface differs ⓘ
surface form:
International Chronostratigraphic Chart 2022
International Chronostratigraphic Chart self-linksurface differs ⓘ
surface form:
International Chronostratigraphic Chart 2023
|
| includes |
Cambrian Period
ⓘ
Carboniferous period ⓘ
surface form:
Carboniferous Period
Cenozoic ⓘ
surface form:
Cenozoic Era
Cretaceous ⓘ
surface form:
Cretaceous Period
Devonian Period ⓘ Jurassic Period ⓘ Mesozoic Era ⓘ Neogene ⓘ
surface form:
Neogene Period
Ordovician Period ⓘ Paleogene ⓘ
surface form:
Paleogene Period
Paleozoic Era ⓘ Permian Period ⓘ Phanerozoic Eon ⓘ Precambrian Supereon ⓘ
surface form:
Precambrian Eon
Quaternary period ⓘ
surface form:
Quaternary Period
Silurian ⓘ
surface form:
Silurian Period
Triassic ⓘ
surface form:
Triassic Period
|
| language | English ⓘ |
| medium |
digital
ⓘ
print ⓘ |
| partOf |
International Chronostratigraphic Chart
self-linksurface differs
ⓘ
surface form:
International Union of Geological Sciences stratigraphic standards
|
| publisher |
International Commission on Stratigraphy
ⓘ
International Union of Geological Sciences ⓘ |
| scope |
Precambrian to Quaternary
ⓘ
entire history of the Earth ⓘ |
| status | global standard for geologic time ⓘ |
| updatedBy |
International Commission on Stratigraphy
ⓘ
surface form:
International Commission on Stratigraphy subcommissions
|
| updateFrequency | periodically ⓘ |
| usedBy |
Earth scientists
ⓘ
geologists ⓘ paleontologists ⓘ stratigraphers ⓘ |
| usedFor |
correlation of rock strata worldwide
ⓘ
global comparison of geological records ⓘ standardization of geologic time terminology ⓘ |
| website | https://stratigraphy.org/chart ⓘ |
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: International Chronostratigraphic Chart Description of subject: The International Chronostratigraphic Chart is the globally recognized standard timeline used by geologists to define and correlate the divisions of Earth’s geological history.
Referenced by (32)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Geologic Time Scale charts
this entity surface form:
International Commission on Stratigraphy International Chronostratigraphic Chart
International Chronostratigraphic Chart
→
partOf
→
International Chronostratigraphic Chart
self-linksurface differs
ⓘ
this entity surface form:
International Union of Geological Sciences stratigraphic standards
International Chronostratigraphic Chart
→
hasVersion
→
International Chronostratigraphic Chart
self-linksurface differs
ⓘ
this entity surface form:
International Chronostratigraphic Chart 2020
International Chronostratigraphic Chart
→
hasVersion
→
International Chronostratigraphic Chart
self-linksurface differs
ⓘ
this entity surface form:
International Chronostratigraphic Chart 2022
International Chronostratigraphic Chart
→
hasVersion
→
International Chronostratigraphic Chart
self-linksurface differs
ⓘ
this entity surface form:
International Chronostratigraphic Chart 2023
International Union of Geological Sciences
→
hasDocument
→
International Chronostratigraphic Chart
ⓘ
subject surface form:
International Commission on Stratigraphy
Global Boundary Stratotype Section and Point for base of Hettangian
→
isPartOf
→
International Chronostratigraphic Chart
ⓘ
this entity surface form:
International Stratigraphic Chart
this entity surface form:
international geologic time scale
this entity surface form:
geologic time scale
this entity surface form:
International Commission on Stratigraphy timescale
this entity surface form:
international geologic timescale
this entity surface form:
International Commission on Stratigraphy timescale
this entity surface form:
International Commission on Stratigraphy time scale
this entity surface form:
International Commission on Stratigraphy timescale
this entity surface form:
International Stratigraphic Chart
this entity surface form:
ICS geologic time scale