Permian-Triassic

GPTKB entity

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