The Late Ordovician Mass Extinction
GPTKB entity
Statements (49)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:species
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:David_A._Mc_Ghee
|
| gptkbp:archaeological_findings |
sedimentary rock layers
|
| gptkbp:caused_by |
gptkb:volcanic_activity
gptkb:item climate change sea level changes asteroid impacts ocean anoxia |
| gptkbp:duration |
1 million years
|
| gptkbp:environmental_impact |
global cooling
ice sheet formation reduced habitat availability |
| gptkbp:followed_by |
Silurian period
|
| gptkbp:fossil_record |
fossil records
biostratigraphy species diversity changes extinction patterns faunal turnover |
| gptkbp:historical_impact |
gptkb:dinosaur
gptkb:island gptkb:opera gptkb:graptolites bivalves |
| https://www.w3.org/2000/01/rdf-schema#label |
The Late Ordovician Mass Extinction
|
| gptkbp:is_affected_by |
marine life
|
| gptkbp:is_studied_in |
ecologists
geologists climatologists paleontologists |
| gptkbp:is_tested_for |
gptkb:Hirnantian
Katian |
| gptkbp:notable_for |
gptkb:Anticosti_Island
gptkb:Appalachian_Basin gptkb:Great_Basin gptkb:Cincinnati_Arch Baltic region |
| gptkbp:occurs_in |
Ordovician period
|
| gptkbp:preceded_by |
Late Cambrian extinction
|
| gptkbp:research_focus |
geology
paleoecology paleobiology |
| gptkbp:resulted_in |
loss of biodiversity
|
| gptkbp:significance |
second largest mass extinction
|
| gptkbp:species |
approximately 85%
|
| gptkbp:wildlife |
marine ecosystems
planktonic communities benthic communities |