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Quaternary: History & Research

The Quaternary (/kwəˈtɜːrnəri/ kwə-TUR-nər-ee, US also /ˈkwɒtərnɛri/ KWOT-ər-nerr-ee) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the Phanerozoic eon. It follows the Neogene Period…

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Quaternary topic overview

The analysis highlights History and Research as prominent areas in the source structure around Quaternary.

Related topics
66
Source areas
5
Connected nodes
71
Extracted relationships
102
Concept neighborhoods
21
Bridge connections
71

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.

Research history · 18 topics
Overview · 14 topics
Geology · 12 topics
Climate · 11 topics
Flora and fauna · 11 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
Period
Lower boundary definition
Base of magnetic polarity chronozone C2r (Matuyama) · Extinction of the Haptophytes Discoaster pentaradiatus and Discoaster surculus
Lower GSSP ratified
2009 (as base of Quaternary and Pleistocene)
Mean atmospheric CO2 content
c. 250 ppm (0.9 times pre-industrial)
Mean atmospheric O2 content
c. 20.8 vol % (100% of modern)

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

Research history

Geology

Climate

Flora and fauna

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 Quaternary connects Entity context

The extracted context around Quaternary shows recurring relationship patterns in the source. For example, Quaternary → AEQUA, April, Archived, Asociación Española, Baena, Bardají, Bern, Correlation, Cuaternario, Departamento, Estudio, European Quaternary, Geología, Lario, Made, March, Mb, Media, Península Ibérica, Quaternary StratigraphyStratigraphical Another extracted example is Quaternary → Agassiz, Alps, Glacial Theory, Glaciation, Ignaz Venetz, In, Louis Agassiz, Mya, Quaternary Ice, Schimper, Swiss, The, This. Use these groups to spot repeated connection types before inspecting the individual relationships.

Quaternary

Top relations

related to External links · 37
Quaternary → AEQUA, April, Archived, Asociación Española, Baena, Bardají, Bern, Correlation, Cuaternario, Departamento, Estudio, European Quaternary, Geología, Lario, Made, March, Mb, Media, Península Ibérica, Quaternary StratigraphyStratigraphical
related to Climate · 13
Quaternary → Agassiz, Alps, Glacial Theory, Glaciation, Ignaz Venetz, In, Louis Agassiz, Mya, Quaternary Ice, Schimper, Swiss, The, This
related to history · 13
Quaternary → France's Seine Basin, Giovanni Arduino, Holocene, In, Italian, Italy, Jules Desnoyers, Neogene Period, Pleistocene, Tertiary Period, The, The Quaternary, The Quaternary Period
related to Flora and fauna · 12
Quaternary → American, During, Eurasia, Late Pleistocene Epoch, Many, Modern, North America, Others, Quaternary Period, The Great Lakes, There, These
related to Geology · 3
Quaternary → Over, The, The Quaternary
Lower boundary definition · 2
Quaternary → Base of magnetic polarity chronozone C2r (Matuyama), Extinction of the Haptophytes Discoaster pentaradiatus and Discoaster surculus
Celestial body · 1
Quaternary → Earth
Chronological unit · 1
Quaternary → Period
Lower boundary GSSP · 1
Quaternary → Monte San Nicola Section, Gela, Sicily, Italy .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefau…
Lower GSSP ratified · 1
Quaternary → 2009 (as base of Quaternary and Pleistocene)

Important terminology

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

Important terminology

period years ago ics time pleistocene international million present epoch holocene scale neogene climate proposed mw-parser-output stratigraphy 2024 current cenozoic

Quaternary relationships Subject–Predicate–Object triples

TTTA extracted 102 structured relationships around Quaternary. Examples in this analysis include Quaternary → Celestial body → Earth and Quaternary → Chronological unit → Period. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
QuaternaryCelestial bodyEarth1.00infobox
QuaternaryChronological unitPeriod1.00infobox
QuaternaryLower boundary definitionBase of magnetic polarity chronozone C2r (Matuyama)1.00infobox
QuaternaryLower boundary definitionExtinction of the Haptophytes Discoaster pentaradiatus and Discoaster surculus1.00infobox
QuaternaryLower boundary GSSPMonte San Nicola Section, Gela, Sicily, Italy .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefau…1.00infobox
QuaternaryLower GSSP ratified2009 (as base of Quaternary and Pleistocene)1.00infobox
QuaternaryMean atmospheric CO2 contentc. 250 ppm (0.9 times pre-industrial)1.00infobox
QuaternaryMean atmospheric O2 contentc. 20.8 vol % (100% of modern)1.00infobox
QuaternaryMean surface temperaturec. 14 °C (0.5 °C above pre-industrial)1.00infobox
QuaternaryName formalityFormal1.00infobox
QuaternaryRegional usageGlobal (ICS)1.00infobox
QuaternaryStratigraphic unitSystem1.00infobox
QuaternaryTime scale(s) usedICS Time Scale1.00infobox
QuaternaryTime span formalityFormal1.00infobox
QuaternaryUpper boundary definitionPresent day1.00infobox
QuaternaryUpper boundary GSSPN/A1.00infobox
QuaternaryUpper GSSP ratifiedN/A1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Quaternary bring nearby vocabulary together. In this analysis, examples include Period, Ics and Holocene. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Quaternary
    • Period
    • Ics
    • Holocene
    • Time
    • Years
    • Scale
    • Present
    • Pleistocene
    • Ago
    • Glaciation
    • Ice
    • Mya
  • quaternary
    • Period
    • Ics
    • Holocene
    • Time
    • Years
    • Scale
    • Present
    • Pleistocene
    • Ago
    • Glaciation
    • Ice
    • Mya
  • international commission on stratigraphy
    • Stratigraphy
    • Ics
    • Commission
    • International
    • Union
    • Scale
    • Anthropocene
    • Body
    • Geological
    • Proposed
    • Epoch
    • Periods
  • quaternary glaciation
    • Ice
    • Mya
    • Period
    • Ics
    • Holocene
    • Time
    • Years
    • Scale
    • Present
    • Pleistocene
    • Climate
    • Ago
  • international union for quaternary research
    • Ics
    • Commission
    • Union
    • Stratigraphy
    • Anthropocene
    • Body
    • Period
    • Geological
    • Proposed
    • Scale
    • Epoch
    • Holocene
  • international union of geological sciences
    • Ics
    • Commission
    • Union
    • Stratigraphy
    • Body
    • Anthropocene
    • Proposed
    • Geological
    • International
    • Scale
    • Epoch
    • Periods
  • holocene
    • Pleistocene
    • Ics
    • Epoch
    • Quaternary
    • Anthropocene
    • Body
    • Earth
    • Union
    • Years
    • Climate
    • Geological
    • Mw-parser-output
  • cenozoic era
    • Neogene
    • Scale
    • Ics
    • Commission
    • Periods
    • Current
    • Holocene
    • Mw-parser-output
    • Mya
    • Stratigraphy
    • Quaternary
    • Epoch

Connections between topic areas Semantic bridges

For Quaternary, one of the stronger structural bridges in this analysis connects Quaternary with Research history. 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
Quaternary — Research history · splits 53 ⟂ 19
Quaternary — Overview · splits 57 ⟂ 15
Quaternary — Geology · splits 59 ⟂ 13
Quaternary — Climate · splits 60 ⟂ 12
Quaternary — Flora and fauna · splits 60 ⟂ 12

Map overview Semantic statistics

Quaternary

Nodes72
Edges71
Triples102
Avg. degree1.97
Density0.027778
Components1

Source & methodology

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

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

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