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Devonian

The Devonian (/dəˈvoʊni.ən, dɛ-/ də-VOH-nee-ən, deh-) is a geologic period and system of the Paleozoic era during the Phanerozoic eon, spanning 60.7 million years from the end of the preceding Silurian period at 419.62 million years ago (Ma), to the beginning of the succeeding Carboniferous period at 358.86 Ma. It is the fourth period of both the…

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Celestial body
Earth
Chronological unit
Period
Lower boundary definition
FAD of the Graptolite Uncinatograptus uniformis
Lower GSSP ratified
1972
Name formality
Formal
Nickname(s)
Age of Fishes

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Overview

History

Subdivisions

Climate

Paleogeography

Life

Late Devonian extinction

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Devonian

Nodes278
Edges277
Triples364
Avg. degree1.99
Density0.007194
Components1

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Devonian

Top relations

related to Closure of the Rheic Ocean · 36
Devonian → Armorica, Armorican, Armorican Terrane Assemblage, As, Avalonia, Bohemia, Carboniferous, Central America, Early Devonian, Europe, France, Franconia, Galicia-Moldanubian, Gondwana, Iberia, In, It, Late Paleozoic, Laurussia, Mediterranean
related to Asian terranes · 32
Devonian → Although, Amuria, Annamia, Asia, Asian, Australian, Balkhash-West Junggar Arc, Cambrian, China, Cimmerian, Further, Gondwana, Indochina, Kazakhstania, Nevertheless, North China, Other Asian, Paleo-Tethys, Paleo-Tethys Ocean, Several
related to Laurussia · 32
Devonian → Acadian Orogeny, Appalachian Mountains, As, Baltica, Belgium, By, Caledonian Mountains, Caledonian Orogeny, Capricorn, Ellesmere Island, England, Euramerica, Europe, Ferrel, For, Further, Great Britain, Greenland, Hadley, In
related to Marine biota · 28
Devonian → Among, Armored, Bactritoids, Bivalves, Carboniferous, Chondrichthyes, Cladoselache, Devonian Nekton Revolution, Devonian Period, Early, Early Devonian, Fishes, However, Late Devonian, Lily-like, Lochkovian, Ma, Marine, Osteichthyes, Palaeozoic
related to Gallery · 24
Devonian → Aulopora, Bothriolepis, Cleveland Shale, Dunkleosteus, Eastmanosteus, Eusthenopteron, Famennian, Kashong Shale, Late Devonian, Late DevonianTitanichthys, Lower, Michigan, Mid, Middle Devonian, New YorkPleurodictyum, New YorkSEM, Ohio, OhioThe, Onychodus, Shark-like Cladoselache
related to Gondwana · 24
Devonian → Africa, Antarctica, Australia, Brazil, Chaitenia, Chile, Chilenia, Cuyania, Gondwana, It, Late Devonian, Malvinokaffric, Malvinokaffric Realm, Numerous, Panthalassa, Paraná Basin, Patagonia, South Africa, South America, South Pole
related to Paleogeography · 22
Devonian → Africa, Antarctica, Asia, Australia, Europe, Gondwana, India, It, Laurussia, North America, Northern Hemisphere, Other, Paleo-Tethys Ocean, Panthalassa, Rheic Ocean, Sea, South America, Southern Hemisphere, The, The Devonian
related to history · 21
Devonian → According, Adam Sedgwick, Beche, Carboniferous, Devon, Devonian Period, Devonian System, England, Henry De, International Commission, Ma, Mississippian, Murchison, North America, Roderick Murchison, Sedgwick, Silurian, Stratigraphy, The, The Great Devonian Controversy
related to External links · 18
Devonian → Age, Archived, Devonian Fossils, Devonian Times, Examples, February, Fishes, Geologic Time Scale, ICS, International Commission, Museum, October, Palaeos, Retrieved, September, Site, Stratigraphy, UC Berkeley
related to Climate · 15
Devonian → At, CO2, Devonian Period, Early, Early Devonian, Earth, Late Devonian, Late Paleozoic, Mid-Devonian, Middle Devonian, Reconstruction, The, The Devonian, The Late Devonian, This

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Important terminology

early late period laurussia gondwana first land middle extinction fishes north ma plants south also marine ocean reefs continent carboniferous

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
DevonianCelestial bodyEarth1.00infobox
DevonianChronological unitPeriod1.00infobox
DevonianLower boundary definitionFAD of the Graptolite Uncinatograptus uniformis1.00infobox
DevonianLower boundary GSSPKlonk, Czech Republic .mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .ge…1.00infobox
DevonianLower GSSP ratified19721.00infobox
DevonianName formalityFormal1.00infobox
DevonianNickname(s)Age of Fishes1.00infobox
DevonianRegional usageGlobal (ICS)1.00infobox
DevonianSea level above present dayRelatively steady around 189 m, gradually falling to 120 m through period1.00infobox
DevonianStratigraphic unitSystem1.00infobox
DevonianTime scale(s) usedICS Time Scale1.00infobox
DevonianTime span formalityFormal1.00infobox
DevonianUpper boundary definitionFAD of the Conodont Siphonodella sulcata (discovered to have biostratigraphic issues as of 2006).1.00infobox
DevonianUpper boundary GSSPLa Serre, Montagne Noire, France 43°33′20″N 3°21′26″E / 43.5555°N 3.3573°E / 43.5555; 3.35731.00infobox
DevonianUpper GSSP ratified19901.00infobox

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