Cretaceous–Tertiary boundary
GPTKB entity
Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:abbreviation |
gptkb:K–T_boundary
|
| gptkbp:age |
about 66 million years ago
|
| gptkbp:alsoKnownAs |
gptkb:K–T_boundary
|
| gptkbp:associatedWith |
mass extinction event
dinosaur extinction |
| gptkbp:characterizedBy |
sudden fossil changes
|
| gptkbp:contains |
iridium layer
|
| gptkbp:evidence |
asteroid impact hypothesis
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cretaceous–Tertiary boundary
|
| gptkbp:location |
gptkb:Gubbio,_Italy
gptkb:Stevns_Klint,_Denmark gptkb:El_Kef,_Tunisia |
| gptkbp:marking |
beginning of Cenozoic Era
end of Mesozoic Era |
| gptkbp:nowCalled |
gptkb:Cretaceous–Paleogene_boundary
|
| gptkbp:recognizedBy |
gptkb:International_Commission_on_Stratigraphy
|
| gptkbp:separates |
gptkb:Cretaceous_period
Tertiary period |
| gptkbp:bfsParent |
gptkb:K-T_extinction_hypothesis
|
| gptkbp:bfsLayer |
7
|