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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
Fossil Record

Data via PaleoBioDB


Taxa Count Key
First appearance
Extinction
First appearance and extinction
Related precursors
KingdomPhylumClassTaxa Count
AnimaliaAnnelida Polychaeta21
AnimaliaArthropoda Arachnida112
AnimaliaArthropoda Branchiopoda4
AnimaliaArthropoda Cephalocarida1
AnimaliaArthropoda Chilopoda7
AnimaliaArthropoda Insecta3
AnimaliaArthropoda Malacostraca9
AnimaliaArthropoda Maxillopoda1
AnimaliaArthropoda Ostracoda291
AnimaliaArthropoda Pycnogonida4
AnimaliaArthropoda Trilobita396
AnimaliaBrachiopoda Chileata4
AnimaliaBrachiopoda Craniata12
AnimaliaBrachiopoda Lingulata58
AnimaliaBrachiopoda Rhynchonellata953
AnimaliaBrachiopoda Strophomenata352
AnimaliaBryozoa Gymnolaemata17
AnimaliaBryozoa Stenolaemata247
AnimaliaChordata Actinopterygii5
AnimaliaCnidaria Anthozoa798
AnimaliaCnidaria Cubozoa1
AnimaliaCnidaria Hydrozoa6
AnimaliaCnidaria Scyphozoa4
AnimaliaEchinodermata Asteroidea53
AnimaliaEchinodermata Crinoidea354
AnimaliaEchinodermata Echinoidea19
AnimaliaEchinodermata Holothuroidea61
AnimaliaEchinodermata Ophiuroidea67
AnimaliaHemichordata Pterobranchia1
AnimaliaMollusca Bivalvia318
AnimaliaMollusca Cephalopoda965
AnimaliaMollusca Gastropoda1,505
AnimaliaMollusca Monoplacophora1
AnimaliaMollusca Polyplacophora15
AnimaliaMollusca Scaphopoda5
AnimaliaPorifera Calcarea3
AnimaliaPorifera Hexactinellida75
BacteriaCyanobacteria Cyanophyceae9
ChromistaForaminifera Globothalamea14
ChromistaForaminifera Monothalamea15
ChromistaForaminifera Tubothalamea39
ChromistaMyzozoa Dinophyceae2
ChromistaRadiozoa Polycystina25
PlantaeChlorophyta Chlorophyceae3
PlantaeChlorophyta Ulvophyceae23
PlantaeRhodophyta Florideophyceae8
PlantaeRhodophyta Rhodophyceae1
PlantaeTracheophyta Ginkgoopsida2
PlantaeTracheophyta Lycopodiopsida3
PlantaeTracheophyta Magnoliopsida5
PlantaeTracheophyta Pinopsida1
PlantaeTracheophyta Polypodiopsida11
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
 
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