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gptkbp:instanceOf
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mass extinction event
|
|
gptkbp:alsoKnownAs
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gptkb:Cretaceous–Paleogene_extinction_event
gptkb:Cretaceous–Tertiary_extinction_event
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gptkbp:category
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paleontology
extinction events
geological events
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gptkbp:causedBy
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gptkb:volcanic_activity
climate change
asteroid impact
|
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gptkbp:demarcatedBy
|
iridium-rich clay layer
|
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gptkbp:evidence
|
gptkb:Chicxulub_crater
|
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gptkbp:followedBy
|
gptkb:Paleogene_period
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
K-Pg extinction event
|
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gptkbp:impact
|
extinction of non-avian dinosaurs
extinction of ammonites
extinction of many marine reptiles
extinction of many plant species
|
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gptkbp:notableSurvivor
|
birds
amphibians
mammals
turtles
crocodilians
some fish
|
|
gptkbp:occurredIn
|
approximately 66 million years ago
end of Cretaceous period
|
|
gptkbp:percentageOfSpeciesLost
|
about 75%
|
|
gptkbp:precededBy
|
gptkb:Cretaceous_period
|
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gptkbp:relatedTo
|
gptkb:Deccan_Traps_volcanism
mass extinction events
|
|
gptkbp:significance
|
beginning of Cenozoic Era
end of Mesozoic Era
|
|
gptkbp:studiedBy
|
geologists
paleontologists
|
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gptkbp:bfsParent
|
gptkb:Cretaceous-Paleogene_extinction_event
|
|
gptkbp:bfsLayer
|
7
|