Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:species
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:Ordovician–_Silurian_extinction_event
|
| gptkbp:caused_by |
gptkb:item
climate change |
| gptkbp:followed_by |
Silurian period
|
| gptkbp:historical_period |
approximately 445 million years ago
|
| https://www.w3.org/2000/01/rdf-schema#label |
Late Ordovician extinction
|
| gptkbp:is_affected_by |
gptkb:dinosaur
gptkb:island gptkb:opera gptkb:mythological_figure gptkb:graptolites marine life bivalves |
| gptkbp:occurs_in |
Ordovician period
|
| gptkbp:resulted_in |
loss of biodiversity
|
| gptkbp:species |
approximately 85% of species
|
| gptkbp:theory |
gptkb:volcanic_activity
asteroid impact ocean anoxia sea level fall |