Statements (20)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:geological_formation
|
| gptkbp:atmosphericChange |
rise in atmospheric oxygen
|
| gptkbp:characteristicLife |
prokaryotes
early eukaryotes |
| gptkbp:duration |
900 million years
|
| gptkbp:endDate |
1.6 billion years ago
|
| gptkbp:followedBy |
gptkb:Mesoproterozoic_Era
|
| gptkbp:notableEvent |
gptkb:Great_Oxidation_Event
first known glaciations formation of supercontinent Columbia |
| gptkbp:partOf |
gptkb:Proterozoic_Eon
|
| gptkbp:precededBy |
gptkb:Archean_Eon
|
| gptkbp:startDate |
2.5 billion years ago
|
| gptkbp:subdivision |
gptkb:Orosirian_Period
gptkb:Rhyacian_Period gptkb:Siderian_Period gptkb:Statherian_Period |
| gptkbp:bfsParent |
gptkb:Proterozoic_Eon
|
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
Paleoproterozoic Era
|