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gptkbp:instanceOf
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mass extinction event
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gptkbp:affects
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gptkb:ammonites
marine life
jawless fish
brachiopods
trilobites
reef-building organisms
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gptkbp:alsoKnownAs
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gptkb:Late_Devonian_extinction
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gptkbp:beganIn
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approximately 375 million years ago
|
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gptkbp:causedBy
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gptkb:volcanic_activity
global cooling
anoxia
asteroid impact (hypothesized)
plant evolution (hypothesized)
|
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gptkbp:endDate
|
approximately 360 million years ago
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gptkbp:followedBy
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gptkb:Permian_extinction
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Devonian extinction
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gptkbp:notableLoss
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coral reefs
stromatoporoids
placoderm fish
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gptkbp:notablePulse
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gptkb:Hangenberg_event
gptkb:Kellwasser_event
|
|
gptkbp:numberOfExtinctionPulses
|
multiple
|
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gptkbp:occurredIn
|
gptkb:Devonian_period
|
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gptkbp:percentageOfSpeciesLost
|
up to 75% of species
|
|
gptkbp:precededBy
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gptkb:Silurian-Devonian_extinction_events
|
|
gptkbp:significance
|
one of the five major mass extinctions in Earth's history
|
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gptkbp:studiedBy
|
paleontologists
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gptkbp:bfsParent
|
gptkb:Late_Devonian_extinction
|
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gptkbp:bfsLayer
|
5
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