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Middle Ordovician

Hierarchy:Phanerozoic Paleozoic  Ordovician
   Middle Ordovician
Classification:Epoch (as per International Commission on Stratigraphy)
Top:458.4 ± 0.9 Ma
Base:470.0 ± 1.4 Ma
Preceeds:Late Ordovician Sandbian
Follows:Early Ordovician Floian
Primary Divisions:DarriwilianDapingian
Fossil Record

Data via PaleoBioDB


Taxa Count Key
First appearance
Extinction
First appearance and extinction
Related precursors
KingdomPhylumClassTaxa Count
AnimaliaAnnelida Polychaeta16
AnimaliaArthropoda Branchiopoda2
AnimaliaArthropoda Cephalocarida1
AnimaliaArthropoda Malacostraca6
AnimaliaArthropoda Ostracoda225
AnimaliaArthropoda Trilobita1,469
AnimaliaBrachiopoda Chileata7
AnimaliaBrachiopoda Craniata17
AnimaliaBrachiopoda Kutorginata2 ✝
AnimaliaBrachiopoda Lingulata223
AnimaliaBrachiopoda Obolellata2
AnimaliaBrachiopoda Rhynchonellata715
AnimaliaBrachiopoda Strophomenata630
AnimaliaBryozoa Gymnolaemata7
AnimaliaBryozoa Stenolaemata350
AnimaliaCnidaria Anthozoa163
AnimaliaCnidaria Cubozoa1
AnimaliaCnidaria Hydrozoa5
AnimaliaCnidaria Scyphozoa11
AnimaliaCnidaria Staurozoa3
AnimaliaEchinodermata Asteroidea26
AnimaliaEchinodermata Crinoidea163
AnimaliaEchinodermata Echinoidea7
AnimaliaEchinodermata Holothuroidea8
AnimaliaEchinodermata Ophiuroidea5
AnimaliaHemichordata Pterobranchia2
AnimaliaMollusca Bivalvia263
AnimaliaMollusca Cephalopoda657
AnimaliaMollusca Gastropoda705
AnimaliaMollusca Monoplacophora1
AnimaliaMollusca Polyplacophora28
AnimaliaMollusca Scaphopoda4
AnimaliaPorifera Calcarea9
AnimaliaPorifera Hexactinellida45
BacteriaCyanobacteria Cyanophyceae6
ChromistaForaminifera Monothalamea7
ChromistaForaminifera Tubothalamea7
ChromistaMyzozoa Dinophyceae2
ChromistaRadiozoa Polycystina22
PlantaeChlorophyta Chlorophyceae2
PlantaeChlorophyta Ulvophyceae15
PlantaeRhodophyta Florideophyceae3
PlantaeRhodophyta Rhodophyceae1
PlantaeTracheophyta Magnoliopsida2
 

Geologic Events

Event NameTypeAgeArea
Caledonian orogeny (concludes)Orogeny~505 - ~400 MaEurope


Overview of geological time

List all geological events
 
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