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Roadian

Hierarchy:Phanerozoic Paleozoic  Permian   Guadalupian
    Roadian
Classification:Age (as per International Commission on Stratigraphy)
Top:268.8 ± 0.5 Ma
Base:272.3 ± 0.5 Ma
Preceeds:Wordian
Follows:Cisuralian Kungurian
GSSP:Stratotype Canyon, Texas, U.S.A
GSSP location:31.8767°N, 104.8770°W
GSSP link:View Global Boundary Stratotype Section and Point of the International Commission on Stratigraphy
Fossil Record

Data via PaleoBioDB


Taxa Count Key
First appearance
Extinction
First appearance and extinction
Related precursors
KingdomPhylumClassTaxa Count
AnimaliaAnnelida Clitellata3
AnimaliaAnnelida Polychaeta18
AnimaliaArthropoda Arachnida31
AnimaliaArthropoda Branchiopoda11
AnimaliaArthropoda Cephalocarida1
AnimaliaArthropoda Chilopoda3
AnimaliaArthropoda Diplopoda3
AnimaliaArthropoda Entognatha1
AnimaliaArthropoda Insecta965
AnimaliaArthropoda Malacostraca14
AnimaliaArthropoda Maxillopoda5
AnimaliaArthropoda Merostomata1
AnimaliaArthropoda Ostracoda314
AnimaliaArthropoda Pycnogonida1
AnimaliaArthropoda Remipedia1
AnimaliaArthropoda Trilobita73
AnimaliaBrachiopoda Chileata6
AnimaliaBrachiopoda Craniata15
AnimaliaBrachiopoda Lingulata35
AnimaliaBrachiopoda Rhynchonellata994
AnimaliaBrachiopoda Strophomenata915
AnimaliaBryozoa Gymnolaemata14
AnimaliaBryozoa Stenolaemata492
AnimaliaChordata Actinopterygii7
AnimaliaChordata Amphibia30
AnimaliaChordata Ascidiacea1
AnimaliaChordata Cephalaspidomorphi1
AnimaliaChordata Elasmobranchii3
AnimaliaChordata Holocephali4
AnimaliaChordata Myxini1
AnimaliaChordata Reptilia171
AnimaliaChordata Sarcopterygii4
AnimaliaCnidaria Anthozoa321
AnimaliaCnidaria Cubozoa1
AnimaliaCnidaria Hydrozoa3
AnimaliaCnidaria Scyphozoa2
AnimaliaCnidaria Staurozoa14
AnimaliaEchinodermata Asteroidea1
AnimaliaEchinodermata Crinoidea89
AnimaliaEchinodermata Echinoidea12
AnimaliaEchinodermata Holothuroidea43
AnimaliaEchinodermata Ophiuroidea7
AnimaliaHemichordata Enteropneusta4
AnimaliaHemichordata Pterobranchia2
AnimaliaMollusca Bivalvia487
AnimaliaMollusca Cephalopoda365
AnimaliaMollusca Gastropoda557
AnimaliaMollusca Monoplacophora1
AnimaliaMollusca Polyplacophora29
AnimaliaMollusca Scaphopoda15
AnimaliaNematoda Adenophorea1
AnimaliaPorifera Calcarea6
AnimaliaPorifera Demospongiae54
AnimaliaPorifera Hexactinellida49
BacteriaCyanobacteria Cyanophyceae7
ChromistaForaminifera Globothalamea34
ChromistaForaminifera Monothalamea19
ChromistaForaminifera Tubothalamea142
ChromistaHaptophyta Prymnesiophyceae2
ChromistaMyzozoa Dinophyceae2
ChromistaRadiozoa Polycystina71
PlantaeChlorophyta Chlorophyceae2
PlantaeChlorophyta Trebouxiophyceae2
PlantaeChlorophyta Ulvophyceae50
PlantaeMarchantiophyta Marchantiopsida1
PlantaeRhodophyta Florideophyceae11
PlantaeRhodophyta Rhodophyceae9
PlantaeTracheophyta Cycadopsida6
PlantaeTracheophyta Ginkgoopsida7
PlantaeTracheophyta Gnetopsida3
PlantaeTracheophyta Lycopodiopsida12
PlantaeTracheophyta Magnoliopsida6
PlantaeTracheophyta Pinopsida17
PlantaeTracheophyta Polypodiopsida35
 

Geologic Events

Event NameTypeAgeArea
Mauritanide Belt orogeny (concludes)Orogeny~320 - ~270 MaWest Africa
Uralian orogeny (concludes)Orogeny~320 - ~175 MaRussia
Pangaea assembly (concludes)Continental Assembly335 - 272 MaGlobal


Overview of geological time

List all geological events
 
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