Ordovician-Silurian extinction

URI: https://gptkb.org/entity/Ordovician-Silurian_extinction
GPTKB entity
Statements (34)
Predicate Object
gptkbp:instanceOf mass extinction event
gptkbp:affects marine life
benthic organisms
planktonic organisms
reef communities
gptkbp:alsoKnownAs gptkb:Ordovician-Silurian_extinction_event
gptkb:End-Ordovician_extinction
gptkbp:beganIn about 443 million years ago
gptkbp:causedBy gptkb:lake
climate change
anoxia
sea level fall
gptkbp:documentedIn fossil specimen
gptkbp:endDate about 443 million years ago
gptkbp:firstPulse glaciation and sea level fall
gptkbp:followedBy gptkb:Silurian_recovery
https://www.w3.org/2000/01/rdf-schema#label Ordovician-Silurian extinction
gptkbp:isOneOf gptkb:Big_Five_mass_extinctions
gptkbp:notableFor two main extinction pulses
gptkbp:occurredIn gptkb:Paleozoic_Era
gptkbp:precededBy gptkb:Late_Ordovician_biodiversity
gptkbp:rank second largest mass extinction in Earth's history
gptkbp:recognizedBy 20th century
gptkbp:resultedIn extinction of many brachiopods
extinction of many conodonts
extinction of many graptolites
extinction of many trilobites
loss of about 85% of marine species
gptkbp:secondPulse subsequent warming and anoxia
gptkbp:studiedBy paleontologists
gptkbp:usedBetween gptkb:Silurian_period
gptkb:Ordovician_period
gptkbp:bfsParent gptkb:Brachiopoda
gptkbp:bfsLayer 6