Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological period boundary
|
| gptkbp:alsoKnownAs |
gptkb:K–Pg_boundary
|
| gptkbp:associatedWith |
mass extinction event
|
| gptkbp:category |
stratigraphy
mass extinction events geological time scale |
| gptkbp:causeOfExtinction |
gptkb:ammonites
non-avian dinosaurs many plant species many marine reptiles |
| gptkbp:characterizedBy |
iridium-rich clay layer
|
| gptkbp:connectsTo |
gptkb:volcanic_activity_(Deccan_Traps)
gptkb:Chicxulub_impact_event |
| gptkbp:endDate |
gptkb:Cretaceous_period
|
| gptkbp:evidence |
geological strata worldwide
|
| gptkbp:followedBy |
gptkb:Cretaceous_period
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cretaceous–Paleogene
|
| gptkbp:marksStartOf |
gptkb:Paleogene_period
|
| gptkbp:occurredApproximately |
66 million years ago
|
| gptkbp:precededBy |
gptkb:Paleogene_period
|
| gptkbp:recognizedBy |
gptkb:International_Commission_on_Stratigraphy
|
| gptkbp:bfsParent |
gptkb:Stevns_Klint
|
| gptkbp:bfsLayer |
7
|