Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:alsoKnownAs |
gptkb:Late_Ordovician
|
| gptkbp:characterizedBy |
high sea levels
diverse marine life glaciation at end of period |
| gptkbp:endDate |
443.8 million years ago
|
| gptkbp:followedBy |
gptkb:Silurian
|
| https://www.w3.org/2000/01/rdf-schema#label |
Upper Ordovician
|
| gptkbp:location |
worldwide
|
| gptkbp:majorFossils |
brachiopods
conodonts graptolites trilobites |
| gptkbp:notableEvent |
gptkb:Late_Ordovician_mass_extinction
|
| gptkbp:partOf |
gptkb:Ordovician
|
| gptkbp:precededBy |
gptkb:Middle_Ordovician
|
| gptkbp:stageName |
gptkb:Hirnantian
gptkb:Katian gptkb:Sandbian |
| gptkbp:startDate |
458.4 million years ago
|
| gptkbp:bfsParent |
gptkb:Mississaugan
|
| gptkbp:bfsLayer |
7
|