Statements (24)
Predicate | Object |
---|---|
gptkbp:instanceOf |
geological period boundary
|
gptkbp:alsoKnownAs |
gptkb:P-T_boundary
|
gptkbp:associatedWith |
gptkb:Permian-Triassic_extinction_event
|
gptkbp:boundaryDefinedBy |
first appearance of conodont Hindeodus parvus
|
gptkbp:boundaryTypeSection |
gptkb:Meishan,_China
|
gptkbp:causesHypothesized |
climate change
volcanism methane release ocean anoxia |
gptkbp:extinctionPercentage |
about 70% of terrestrial vertebrate species
about 90% of marine species |
gptkbp:followedBy |
gptkb:Triassic_period
|
https://www.w3.org/2000/01/rdf-schema#label |
Permian-Triassic
|
gptkbp:location |
gptkb:event
|
gptkbp:marksTransitionBetween |
gptkb:Triassic_period
gptkb:Permian_period |
gptkbp:precededBy |
gptkb:Permian_period
|
gptkbp:significance |
largest mass extinction in Earth's history
|
gptkbp:startDate |
about 252 million years ago
|
gptkbp:stratigraphicSignificance |
boundary between Paleozoic and Mesozoic eras
|
gptkbp:studiedIn |
geology
paleontology |
gptkbp:bfsParent |
gptkb:Putorana_Plateau
|
gptkbp:bfsLayer |
6
|