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The Ordovician (/ɔːrdəˈvɪʃi.ən, -doʊ-, -ˈvɪʃən/ or-də-VISH-ee-ən, -doh-, -VISH-ən) is a geologic period and system, the second of six periods of the Paleozoic Era, and the second of twelve periods of the Phanerozoic Eon. The Ordovician spans 43.75 million years from the end of the Cambrian Period 486.85 Ma (million years ago) to the start of the…
The analysis highlights Geography and Art as prominent areas in the source structure around Ordovician.
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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.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
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The extracted context around Ordovician shows recurring relationship patterns in the source. For example, Ordovician → Africa, Baltoscandia, Boda Event, Carbon, Darriwilian, Despite, Early Eocene Climatic Optimum, Early Ordovician, Early Palaeozoic Ice Age, Earth, Europe, Evidence, Floian, Hibernian, Hirnantian, Katian, Late Ordovician, Locally, Middle Ordovician, Paleozoic Another extracted example is Ordovician → Alborz, Another, Argentinian, Articulate, Baltica, Baltican, Cambrian, Celtic, Faunas, Gondwana, Gondwana's, Great Ordovician Biodiversification Event, Iapetus Ocean, Laurentia, Laurentian, Middle Ordovician, North China, Palaeozoic, Paleozoic, Phanerozoic. Use these groups to spot repeated connection types before inspecting the individual relationships.
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cambrian period sea gondwana silurian years event fauna brachiopods end time appeared land trilobites million organisms extinction diversity life also
TTTA extracted 129 structured relationships around Ordovician. Examples in this analysis include Ordovician → Celestial body → Earth and Ordovician → Chronological unit → Period. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Ordovician | Celestial body | Earth | 1.00 | infobox |
| Ordovician | Chronological unit | Period | 1.00 | infobox |
| Ordovician | First proposed by | Charles Lapworth, 1879 | 1.00 | infobox |
| Ordovician | Lower boundary definition | FAD of the Conodont Iapetognathus fluctivagus | 1.00 | infobox |
| Ordovician | Lower GSSP ratified | January 2000: 19 | 1.00 | infobox |
| Ordovician | Name formality | Formal | 1.00 | infobox |
| Ordovician | Name ratified | 1960 | 1.00 | infobox |
| Ordovician | Regional usage | Global (ICS) | 1.00 | infobox |
| Ordovician | Sea level above present day | 180 m; rising to 220 m in Caradoc and falling sharply to 141 m in end-Ordovician glaciations | 1.00 | infobox |
| Ordovician | Stratigraphic unit | System | 1.00 | infobox |
| Ordovician | Time scale(s) used | ICS Time Scale | 1.00 | infobox |
| Ordovician | Time span formality | Formal | 1.00 | infobox |
| Ordovician | Upper boundary definition | FAD of the Graptolite Akidograptus ascensus | 1.00 | infobox |
| Ordovician | Upper boundary GSSP | Dob's Linn, Moffat, U.K. 55°26′24″N 3°16′12″W / 55.4400°N 3.2700°W / 55.4400; -3.2700 | 1.00 | infobox |
| Ordovician | Upper GSSP ratified | 1984 | 1.00 | infobox |
The concept neighborhoods around Ordovician bring nearby vocabulary together. In this analysis, examples include Cambrian, End and Period. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
For Ordovician, one of the stronger structural bridges in this analysis connects Ordovician with Life. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Ordovician to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Geography & Art, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
Source: Wikipedia — Ordovician · EN edition · Analysis: TopicsToTalkAbout