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Kimmeridgian: Stratigraphic definition & Overview

In the geologic timescale, the Kimmeridgian is an age in the Late Jurassic Epoch and a stage in the Upper Jurassic Series. It spans the time between 154.8 ±0.8 Ma and 149.2 ±0.7 Ma (million years ago). The Kimmeridgian follows the Oxfordian and precedes the Tithonian.

Language: English [EN]
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Kimmeridgian topic overview

The analysis highlights Stratigraphic definition and Overview as prominent areas in the source structure around Kimmeridgian.

Related topics
38
Source areas
2
Connected nodes
42
Extracted relationships
65
Concept neighborhoods
16
Bridge connections
42

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Stratigraphic definition · 29 topics
Overview · 9 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Celestial body
Earth
Chronological unit
Age
Lower boundary definition
FAD of the Ammonite Pictonia baylei
Lower GSSP ratified
2021
Name formality
Formal
Regional usage
Global (ICS)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Stratigraphic definition

Literature

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Kimmeridgian connects Entity context

The extracted context around Kimmeridgian shows recurring relationship patterns in the source. For example, Kimmeridgian → Alcide, As, British, Dorset, England, France, French, Historically, ICS, It, Jurassic, Kimmeridge, Lower Cretaceous, North Sea, Orbigny, Portlandian, The, The Kimmeridge Clay Formation, The Kimmeridgian Stage, Thomas Webster Another extracted example is Kimmeridgian → Cambridge University Press, Encyclopædia Britannica, GeoWhen Database, Hugh, ICSStratigraphic, In Chisholm, John Allen, Kimeridgian, KimmeridgianJurassic-Cretaceous, Norges Network, This, Upper Jurassic, Vol. Use these groups to spot repeated connection types before inspecting the individual relationships.

Kimmeridgian

Top relations

related to Stratigraphic definition · 22
Kimmeridgian → Alcide, As, British, Dorset, England, France, French, Historically, ICS, It, Jurassic, Kimmeridge, Lower Cretaceous, North Sea, Orbigny, Portlandian, The, The Kimmeridge Clay Formation, The Kimmeridgian Stage, Thomas Webster
related to External links · 13
Kimmeridgian → Cambridge University Press, Encyclopædia Britannica, GeoWhen Database, Hugh, ICSStratigraphic, In Chisholm, John Allen, Kimeridgian, KimmeridgianJurassic-Cretaceous, Norges Network, This, Upper Jurassic, Vol
related to Subdivision · 12
Kimmeridgian → Aspidoceras, Ataxioceras, Aulacostephanus, Crussoliceras, Hybonoticeras, Idoceras, In, Lower, Sutneria, Tethys, The Kimmeridgian, Upper
Upper boundary GSSP candidate section(s) · 3
Kimmeridgian → Canjuers, France, Fornazzo, Sicily, Italy, Mount Crussol, France
Upper boundary definition candidates · 2
Kimmeridgian → Base of magnetic polarity chronozone M22An., FAD of the Ammonite genus Gravesia
is a · 2
Kimmeridgian → age in the Late Jurassic Epoch and a stage in the Upper Jurassic Series, Flodigarry section at Staffin Bay on the Isle of Skye
Celestial body · 1
Kimmeridgian → Earth
Chronological unit · 1
Kimmeridgian → Age
Lower boundary definition · 1
Kimmeridgian → FAD of the Ammonite Pictonia baylei
Lower boundary GSSP · 1
Kimmeridgian → Flodigarry, Skye, Scotland, UK .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-o…

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

jurassic upper ics ammonite stage tithonian base stratigraphic boundary years ago name time age ma oxfordian first timescale mw-parser-output scale

Kimmeridgian relationships Subject–Predicate–Object triples

TTTA extracted 65 structured relationships around Kimmeridgian. Examples in this analysis include Kimmeridgian → Celestial body → Earth and Kimmeridgian → Chronological unit → Age. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
KimmeridgianCelestial bodyEarth1.00infobox
KimmeridgianChronological unitAge1.00infobox
KimmeridgianLower boundary definitionFAD of the Ammonite Pictonia baylei1.00infobox
KimmeridgianLower boundary GSSPFlodigarry, Skye, Scotland, UK .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-o…1.00infobox
KimmeridgianLower GSSP ratified20211.00infobox
KimmeridgianName formalityFormal1.00infobox
KimmeridgianRegional usageGlobal (ICS)1.00infobox
KimmeridgianStratigraphic unitStage1.00infobox
KimmeridgianTime scale(s) usedICS Time Scale1.00infobox
KimmeridgianTime span formalityFormal1.00infobox
KimmeridgianUpper boundary definitionNot formally defined1.00infobox
KimmeridgianUpper boundary definition candidatesBase of magnetic polarity chronozone M22An.1.00infobox
KimmeridgianUpper boundary definition candidatesFAD of the Ammonite genus Gravesia1.00infobox
KimmeridgianUpper boundary GSSP candidate section(s)Mount Crussol, France1.00infobox
KimmeridgianUpper boundary GSSP candidate section(s)Canjuers, France1.00infobox
KimmeridgianUpper boundary GSSP candidate section(s)Fornazzo, Sicily, Italy1.00infobox
Kimmeridgianis aage in the Late Jurassic Epoch and a stage in the Upper Jurassic Series0.90text
Kimmeridgianis aFlodigarry section at Staffin Bay on the Isle of Skye0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Kimmeridgian bring nearby vocabulary together. In this analysis, examples include Upper, Ammonite and Base. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Kimmeridgian
    • Upper
    • Ammonite
    • Base
    • Jurassic
    • Lower
    • Scale
    • Stage
    • Stratigraphic
    • Ics
    • Tithonian
    • Gssp
    • Late
  • kimmeridgian
    • Upper
    • Ammonite
    • Base
    • Jurassic
    • Lower
    • Scale
    • Stage
    • Stratigraphic
    • Ics
    • Tithonian
    • Gssp
    • Late
  • age
    • Chronozone
    • Fad
    • Stage
    • Upper
    • Definition
    • Geologic
    • Gssp
    • Late
    • Scotland
    • Ago
    • Baylei
    • Boundary
  • ics
    • Jurassic
    • Stratigraphic
    • Subdivision
    • Mw-parser-output
    • Scale
    • Timescale
    • Years
    • Stage
    • Tithonian
    • Upper
    • Kimmeridgian
    • Chronozone
  • ammonite
    • Base
    • Appearance
    • Baylei
    • Lower
    • Mw-parser-output
    • Scale
    • Time
    • Kimmeridgian
    • First
    • Stratigraphic
    • Upper
    • Chronozone
  • stratigraphic definition
    • Mw-parser-output
    • Chronozone
    • Fad
    • Ics
    • Stratigraphic
    • Baylei
    • Ammonite
    • Gssp
    • Ma
    • Scotland
    • Subdivision
    • Base
  • stage
    • Upper
    • Lower
    • Name
    • Timescale
    • Ics
    • Chronozone
    • Fad
    • Definition
    • Gssp
    • Scotland
    • Ago
    • Baylei
  • global boundary stratotype section and point
    • Gssp
    • Scotland
    • Baylei
    • Defined
    • Base
    • Chronozone
    • Fad
    • Definition
    • Appearance
    • Lower
    • Mw-parser-output
    • Name

Connections between topic areas Semantic bridges

For Kimmeridgian, one of the stronger structural bridges in this analysis connects Kimmeridgian with Stratigraphic definition. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Kimmeridgian — Stratigraphic definition · splits 13 ⟂ 30
Kimmeridgian — Overview · splits 33 ⟂ 10

Map overview Semantic statistics

Kimmeridgian

Nodes43
Edges42
Triples65
Avg. degree1.95
Density0.046512
Components1

Source & methodology

TTTA analyzes the structure around Kimmeridgian to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Stratigraphic definition & Overview, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Kimmeridgian · EN edition · Analysis: TopicsToTalkAbout

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