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Silurian

Hierarchy:Phanerozoic Paleozoic
  Silurian
Classification:Period (as per International Commission on Stratigraphy)
Top:419.2 ± 3.2 Ma
Base:443.8 ± 1.5 Ma
Preceeds:Devonian Early Devonian  Lochkovian
Follows:Ordovician Late Ordovician  Hirnantian
Primary Divisions:PridoliLudlowWenlockLlandovery
FGDC code:S
Fossil Record

Data via PaleoBioDB


Taxa Count Key
First appearance
Extinction
First appearance and extinction
Related precursors
KingdomPhylumClassTaxa Count
AnimaliaAnnelida Polychaeta26
AnimaliaArthropoda Arachnida34
AnimaliaArthropoda Branchiopoda2
AnimaliaArthropoda Cephalocarida1
AnimaliaArthropoda Chilopoda1
AnimaliaArthropoda Malacostraca14
AnimaliaArthropoda Maxillopoda1
AnimaliaArthropoda Ostracoda273
AnimaliaArthropoda Pycnogonida3
AnimaliaArthropoda Trilobita693
AnimaliaBrachiopoda Chileata12
AnimaliaBrachiopoda Craniata22
AnimaliaBrachiopoda Lingulata48
AnimaliaBrachiopoda Obolellata2 ✝
AnimaliaBrachiopoda Rhynchonellata1,051
AnimaliaBrachiopoda Strophomenata446
AnimaliaBryozoa Gymnolaemata11
AnimaliaBryozoa Stenolaemata224
AnimaliaCnidaria Anthozoa715
AnimaliaCnidaria Cubozoa1
AnimaliaCnidaria Hydrozoa3
AnimaliaCnidaria Scyphozoa2
AnimaliaEchinodermata Asteroidea46
AnimaliaEchinodermata Crinoidea350
AnimaliaEchinodermata Echinoidea14
AnimaliaEchinodermata Holothuroidea13
AnimaliaEchinodermata Ophiuroidea22
AnimaliaHemichordata Pterobranchia1
AnimaliaMollusca Bivalvia348
AnimaliaMollusca Cephalopoda342
AnimaliaMollusca Gastropoda922
AnimaliaMollusca Monoplacophora1
AnimaliaMollusca Polyplacophora27
AnimaliaMollusca Scaphopoda7
AnimaliaPorifera Calcarea3
AnimaliaPorifera Hexactinellida53
BacteriaCyanobacteria Cyanophyceae8
ChromistaForaminifera Globothalamea3
ChromistaForaminifera Monothalamea12
ChromistaForaminifera Tubothalamea8
ChromistaMyzozoa Dinophyceae2
ChromistaRadiozoa Polycystina15
FungiAscomycota Sordariomycetes1
PlantaeChlorophyta Chlorophyceae3
PlantaeChlorophyta Ulvophyceae25
PlantaeRhodophyta Florideophyceae10
PlantaeRhodophyta Rhodophyceae1
PlantaeTracheophyta Lycopodiopsida1
PlantaeTracheophyta Magnoliopsida6
PlantaeTracheophyta Polypodiopsida1
First Vascular plants (the rhyniophytes and their relatives), first millipedes and arthropleurids on land.

First jawed fishes, as well as many armoured jawless fish, populate the seas. Sea-scorpions reach large size. Tabulate and rugose corals, brachiopods (Pentamerida,Rhynchonellida, etc.), and crinoids all abundant.

Trilobites and mollusks diverse; graptolites not as varied.

Beginning of Caledonian Orogeny for hills in England, Ireland, Wales, Scotland, and the Scandinavian Mountains. Also continued into Devonian period as the Acadian Orogeny, above.

Taconic Orogeny tapers off.

Lachlan Orogeny on Australian continent tapers off.
 

Geologic Events

Event NameTypeAgeArea
Ordovician–Silurian extinction events (concludes)Mass Extinction Event~455 - ~430 MaGlobal
Caledonian orogeny (concludes)Orogeny~505 - ~400 MaEurope


Overview of geological time

List all geological events
 
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