Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:alsoKnownAs |
Eocene–Oligocene boundary
|
| gptkbp:boundaryDefinedBy |
first appearance of the foraminiferan Hantkenina extinction
|
| gptkbp:causedBy |
decrease in atmospheric CO2
tectonic changes |
| gptkbp:characterizedBy |
gptkb:Antarctic_glaciation
global cooling major extinction event |
| https://www.w3.org/2000/01/rdf-schema#label |
Eocene–Oligocene transition
|
| gptkbp:marksTransitionBetween |
gptkb:Eocene_epoch
gptkb:Oligocene_epoch |
| gptkbp:occurredApproximately |
33.9 million years ago
|
| gptkbp:resultedIn |
formation of Antarctic ice sheet
extinction of many mammal groups ocean circulation changes |
| gptkbp:significance |
major faunal turnover
marks the start of the modern icehouse climate |
| gptkbp:studiedIn |
paleontology
paleoclimatology |
| gptkbp:bfsParent |
gptkb:Grande_Coupure
|
| gptkbp:bfsLayer |
6
|