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Devonian

Hierarchy:Phanerozoic Paleozoic
  Devonian
Classification:Period (as per International Commission on Stratigraphy)
Top:358.9 ± 0.4 Ma
Base:419.2 ± 3.2 Ma
Preceeds:Carboniferous Mississippian  Tournaisian
Follows:Silurian Pridoli
Primary Divisions:Late DevonianMiddle DevonianEarly Devonian
FGDC code:D
First clubmosses, horsetails and ferns appear, as do the first seed-bearing plants (progymnosperms), first trees (the progymnosperm Archaeopteris), and first (wingless) insects. Strophomenid and atrypid brachiopods, rugose and tabulate corals, and crinoids are all abundant in the oceans. Goniatite ammonoids are plentiful, while squid-like coleoids arise. Trilobites and armoured agnaths decline, while jawed fishes (placoderms, lobe-finned and ray-finned fish, and early sharks) rule the seas. First amphibians still aquatic. "Old Red Continent" of Euramerica. Beginning of Acadian Orogeny for Anti-Atlas Mountains of North Africa, and Appalachian Mountains of North America, also the Antler, Variscan, and Tuhua Orogeny in New Zealand.
 

Geologic Events

Event NameTypeAgeArea
Late Devonian extinction (concludes)Mass Extinction Event~375 - ~360 MaGlobal
Siljan impactImpact Event376.8 ± 1.7 MaSweden
Variscan/Hercynian orogeny (concludes)Orogeny~400 - ~280 MaEurope/North America
Caledonian orogeny (concludes)Orogeny~505 - ~400 MaEurope


Overview of geological time

List all geological events
Mineral and/or Locality  
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