Paleozoic Era

E14994

geologic era

The Paleozoic Era was an ancient geologic time interval, spanning roughly 541 to 252 million years ago, marked by the emergence and diversification of complex life in the seas and on land and the assembly of major continental landmasses.

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Observed surface forms (7)

Surface form	Occurrences
Paleozoic	11
Paleozoic era	5
Devonian	1
Palaeozoic	1
Palaeozoic Era	1
Paleozoic Era (within Phanerozoic)	1
PaleozoicEra	1

Statements (48)

Predicate	Object
instanceOf	geologic era ⓘ
alternativeName	Paleozoic Era ⓘ surface form: Palaeozoic Era
characterizedBy	assembly of supercontinent Pangaea ⓘ colonization of land by arthropods ⓘ colonization of land by plants ⓘ diversification of marine invertebrates ⓘ emergence of complex animal life ⓘ evolution of vertebrates on land ⓘ formation of extensive coal swamps ⓘ major orogenies ⓘ multiple mass extinctions ⓘ
climate	generally variable climate ⓘ periods of extensive glaciation ⓘ
contains	Cambrian Period ⓘ Carboniferous period ⓘ surface form: Carboniferous Period Devonian Period ⓘ Ordovician Period ⓘ Permian Period ⓘ Silurian ⓘ surface form: Silurian Period
duration	approximately 289 million years ⓘ
endsWith	Permian–Triassic mass extinction ⓘ surface form: Permian–Triassic extinction event
endTime	252 million years ago ⓘ
fieldOfStudy	geology ⓘ paleontology ⓘ
follows	Neoproterozoic Era ⓘ
majorEvent	Cambrian explosion ⓘ Carboniferous rainforest collapse ⓘ Great Ordovician Biodiversification Event ⓘ Late Devonian extinction ⓘ Permian–Triassic mass extinction ⓘ
partOf	Phanerozoic Eon ⓘ
precedes	Mesozoic Era ⓘ
significance	development of complex terrestrial ecosystems ⓘ first appearance of most major animal phyla in fossil record ⓘ major diversification of vertebrates ⓘ transition of life from sea to land ⓘ
startTime	541 million years ago ⓘ
tectonicActivity	closure of Iapetus Ocean ⓘ closure of Rheic Ocean ⓘ formation of Appalachian orogenies ⓘ formation of Ural orogeny ⓘ
typicalLifeForms	ammonoids ⓘ brachiopods ⓘ early amphibians ⓘ early fishes ⓘ early reptiles ⓘ trilobites ⓘ vascular land plants ⓘ

Referenced by (36)

Full triples — surface form annotated when it differs from this entity's canonical label.

Paleozoic Era → alternativeName → Paleozoic Era ⓘ

this entity surface form: Palaeozoic Era

Phanerozoic Eon → contains → Paleozoic Era ⓘ

Evolving Planet → coversTimePeriod → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Phanerozoic Eon → earliestEra → Paleozoic Era ⓘ

Embryophyta → firstAppearance → Paleozoic Era ⓘ

this entity surface form: Paleozoic era

Precambrian Supereon → followedBy → Paleozoic Era ⓘ

this entity surface form: Paleozoic Era (within Phanerozoic)

Mesozoic Era → follows → Paleozoic Era ⓘ

Interior Low Plateaus physiographic region → geologicAge → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Old Red Sandstone → geologicAge → Paleozoic Era ⓘ

this entity surface form: Devonian

Anti-Atlas → geologicalAge → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Appalachian Mountains → geologicalAge → Paleozoic Era ⓘ

Black Mountain → geologicalAge → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Blue Ridge Mountains → geologicalAge → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Caledonian fault system → geologicalAge → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Southern Uplands accretionary prism → geologicalAge → Paleozoic Era ⓘ

this entity surface form: Palaeozoic

Vosges Mountains → geologicalAge → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Appalachian Valley → geologicalEra → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Driftless Area → geologicalEra → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Eastern Cordillera → geologicalEra → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Pinales → geologicalOrigin → Paleozoic Era ⓘ

this entity surface form: PaleozoicEra

Muddy Mountains → geologyPeriod → Paleozoic Era ⓘ

this entity surface form: Paleozoic

Appalachian orogeny → happenedDuring → Paleozoic Era ⓘ

International Chronostratigraphic Chart → includes → Paleozoic Era ⓘ

Cambrian explosion → locatedInTime → Paleozoic Era ⓘ

this entity surface form: Paleozoic era

Permian–Triassic mass extinction → marksBoundaryBetween → Paleozoic Era ⓘ

this entity surface form: Paleozoic era

Great Ordovician Biodiversification Event → occursIn → Paleozoic Era ⓘ

closure of Iapetus Ocean → occursIn → Paleozoic Era ⓘ

Caledonian orogeny → partOf → Paleozoic Era ⓘ

this entity surface form: Paleozoic era

Cambrian Period → partOf → Paleozoic Era ⓘ

Carboniferous period → partOf → Paleozoic Era ⓘ

this entity surface form: Paleozoic era

Devonian Period → partOf → Paleozoic Era ⓘ

Ordovician Period → partOf → Paleozoic Era ⓘ

Permian Period → partOf → Paleozoic Era ⓘ

Silurian → partOf → Paleozoic Era ⓘ

Neoproterozoic Era → precedes → Paleozoic Era ⓘ

Early Devonian → timeScale → Paleozoic Era ⓘ