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Jurassic: History, Geography & Regions

The Jurassic (/dʒʊˈræsɪk/ juurr-ASS-ik) is a geologic period and stratigraphic system that lasted about 58.3 million years, spanning from the end of the Triassic Period 201.4 Ma (million years ago) to the beginning of the Cretaceous Period, 143.1 Ma. The Jurassic constitutes the second and middle period of the Mesozoic Era as well as the eighth period of…

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Jurassic topic overview

The analysis highlights History, Geography and Regions as prominent areas in the source structure around Jurassic.

Related topics
644
Source areas
7
Connected nodes
651
Extracted relationships
295
Related term clusters
23
Bridge connections
651

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.

Overview · 462 topics
Fauna · 88 topics
Paleogeography and tectonics · 32 topics
Etymology and history · 25 topics
Geology · 21 topics
Climate · 12 topics
Flora · 4 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.

Chronological unit
Period
Lower boundary definition
First appearance of the ammonite Psiloceras spelae tirolicum.
Lower GSSP ratified
2010
Name formality
Formal
Regional usage
Global (ICS)
Stratigraphic unit
System

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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

Etymology and history

Geology

Paleogeography and tectonics

Climate

Flora

Fauna

For the semantics nerds

You can skip this section if you’re here for content ideas and keyword inspiration.

Advanced semantic analysis

How Jurassic connects Entity context

The extracted context around Jurassic shows recurring relationship patterns in the source. For example, Jurassic → Although, Apocrita, Archaeidae, Asia, Britain, Callovian, Cenozoic, China, Coccomorpha, Cymbaeremaeidae, Daohugou Bed, Early Jurassic, Embioptera, Eoplectreurys, Eupnoi, Eurasia, Germany, Glossata, Hagloidea, Hydrozetes Another extracted example is Jurassic → Aalenian, Aalenian-Bajocian, Bajocian, Barremian Cool Interval, Based, Central Atlantic, Dropstones, Early Cretaceous, Early Jurassic Cool Interval, Early Tithonian Cooling Event, ETCE, Forests, Gondwana, Intermittent, Karoo-Ferrar, Kimmeridgian Warm Interval, KWI, Ma, Middle Jurassic, Middle Jurassic Cool Interval. Use these groups to spot repeated connection types before inspecting the individual relationships.

Jurassic

Top relations

related to Insects and arachnids · 54
Jurassic → Although, Apocrita, Archaeidae, Asia, Britain, Callovian, Cenozoic, China, Coccomorpha, Cymbaeremaeidae, Daohugou Bed, Early Jurassic, Embioptera, Eoplectreurys, Eupnoi, Eurasia, Germany, Glossata, Hagloidea, Hydrozetes
related to Climate · 44
Jurassic → Aalenian, Aalenian-Bajocian, Bajocian, Barremian Cool Interval, Based, Central Atlantic, Dropstones, Early Cretaceous, Early Jurassic Cool Interval, Early Tithonian Cooling Event, ETCE, Forests, Gondwana, Intermittent, Karoo-Ferrar, Kimmeridgian Warm Interval, KWI, Ma, Middle Jurassic, Middle Jurassic Cool Interval
related to Amphibians · 42
Jurassic → Anoual Formation, Anoualerpeton, Arizona, Asia, Asiatic, Australia, Bathonian, Beiyanerpeton, Brachyopidae, Britain, China, Chunerpeton, Cryptobranchoidea, Early Jurassic, Enneabatrachus, Eocaecilia, Eurasia, France, Iridotriton, Kokartus
related to history · 27
Jurassic → Alexander, Alexandre Brongniart, Alps, Britain, Brongniart, Constitute, Crust, Description, Earth, Essai, Essay, France, French, German, Germany, Humboldt, Jura, Jura Mountains, Jura-Kalkstein, Known Lands
related to Paleogeography and tectonics · 26
Jurassic → Africa, Asia, Atlantic, Baltic Shield, Beginning, Boreal Ocean, Callovian, Central Atlantic Magmatic Province, Cretaceous, Early Jurassic, Europe, Gondwana, Greenland, Laurasia, North, North America, North Atlantic Ocean, Pangaea, Panthalassa, South Atlantic
related to Mammaliaformes · 19
Jurassic → Australosphenida, Castorocauda, Early Cretaceous, Early Jurassic, Fruitafossor, Gondwana, Haramiyida, Juramaia, Late Jurassic, Mammaliaformes, Middle Jurassic, Northern Hemisphere, Rhaetian, The Tritylodontidae, Therian, Triassic, Tritheledontidae, Two, Volaticotherini
related to Geology · 13
Jurassic → Geologists, Global Boundary Stratotype Section, GSSP, ICS, International Commission, Lower Jurassic, Middle Jurassic, Point, Similarly, Stages, Stratigraphy, The Jurassic Period, Upper Jurassic
related to Mineral and hydrocarbon deposits · 11
Jurassic → China, Ghawar Field, Iraq, Late Jurassic, Naokelekan, North Sea, Ordos Basin, The Arabian Intrashelf Basin, The Jurassic-aged Sargelu, The Kimmeridge Clay, Turpan-Hami Basin
related to End-Triassic extinction · 10
Jurassic → Antarctica, Dicroidium, Early Jurassic, Europe, Gondwanan, Greenland, Lepidopteris, Patagonia, Peltaspermaceae, Triassic
related to Dinosaurs · 7
Jurassic → Chilesaurus, Dinosaurs, Early Jurassic, Late Jurassic, Late Triassic, South America, Triassic

Important terminology

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

Important terminology

triassic known appeared living modern group oldest earliest boundary end appearance cretaceous diversity including extinction ammonite extinct beginning also genus

Jurassic relationships Subject–Predicate–Object triples

TTTA extracted 295 structured relationships around Jurassic. Examples in this analysis include Jurassic → Chronological unit → Period and Jurassic → Lower boundary definition → First appearance of the ammonite Psiloceras spelae tirolicum.. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
JurassicChronological unitPeriod1.00infobox
JurassicLower boundary definitionFirst appearance of the ammonite Psiloceras spelae tirolicum.1.00infobox
JurassicLower GSSP ratified20101.00infobox
JurassicName formalityFormal1.00infobox
JurassicRegional usageGlobal (ICS)1.00infobox
JurassicStratigraphic unitSystem1.00infobox
JurassicTime scale(s) usedICS Time Scale1.00infobox
JurassicTime span formalityFormal1.00infobox
JurassicUpper boundary definitionNot formally defined1.00infobox
JurassicUpper boundary definition candidatesMagnetic—base of Chron M18r1.00infobox
JurassicUpper boundary definition candidatesBase of Calpionellid zone B1.00infobox
JurassicUpper boundary definition candidatesFAD of ammonite Berriasella jacobi1.00infobox
JurassicUpper boundary GSSP candidate section(s)None1.00infobox
Jurassicis aextinct family Cheirolepidiaceae0.90text

Related concept clusters Related term clusters

The concept neighborhoods around Jurassic bring nearby vocabulary together. In this analysis, examples include Known, Appeared and Triassic. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • cretaceous
    • Suggested
    • Group
    • End
    • Record
    • Diversity
    • Boundary
    • Jurassic
    • Known
    • Family
    • Extinction
    • Also
    • Triassic
  • crown group
    • Triassic
    • Known
    • Jurassic
    • Living
    • Represented
    • Extinct
    • Modern
    • Oldest
    • China
    • Marine
    • Genus
    • Members
  • early cretaceous
    • Jurassic
    • Living
    • Known
    • Suggested
    • Triassic
    • Group
    • Toarcian
    • End
    • Family
    • Oldest
    • Members
    • Record
  • Jurassic
    • Known
    • Appeared
    • Triassic
    • Living
    • Modern
    • Oldest
    • Group
    • Earliest
    • Members
    • Diversity
    • China
    • Family
  • jurassic
    • Known
    • Appeared
    • Triassic
    • Living
    • Modern
    • Oldest
    • Group
    • Earliest
    • Members
    • Diversity
    • China
    • Family
  • triassic
    • End
    • Extinction
    • Jurassic
    • Diversity
    • Group
    • Appeared
    • Boundary
    • Major
    • Marine
    • Including
    • Also
    • Europe
  • triassic–jurassic extinction event
    • Known
    • End
    • Extinction
    • Triassic
    • Appeared
    • Jurassic
    • Diversity
    • Living
    • Major
    • Group
    • Modern
    • Marine
  • first appearance
    • Ammonite
    • Appeared
    • Appearance
    • Boundary
    • Base
    • Jurassic
    • Group
    • Modern
    • Beginning
    • Genus
    • Triassic
    • Living

Connections between topic areas Semantic bridges

For Jurassic, one of the stronger structural bridges in this analysis connects Jurassic with Overview. 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
Jurassic — Overview · splits 189 ⟂ 463
Jurassic — Fauna · splits 563 ⟂ 89
Jurassic — Paleogeography and tectonics · splits 619 ⟂ 33
Jurassic — Etymology and history · splits 626 ⟂ 26
Jurassic — Geology · splits 630 ⟂ 22
Jurassic — Climate · splits 639 ⟂ 13
Jurassic — Flora · splits 647 ⟂ 5

Map overview Semantic statistics

Jurassic

Nodes652
Edges651
Triples295
Avg. degree2
Density0.003067
Components1

Source & methodology

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

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

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