Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological eon
|
| gptkbp:coversPeriod |
gptkb:Orosirian_Period
gptkb:Rhyacian_Period gptkb:Siderian_Period gptkb:Statherian_Period |
| gptkbp:duration |
900 million years
|
| gptkbp:endDate |
1.6 billion years ago
|
| gptkbp:followedBy |
Mesoproterozoic Eon
|
| https://www.w3.org/2000/01/rdf-schema#label |
Paleoproterozoic Eon
|
| gptkbp:notableEvent |
gptkb:Great_Oxidation_Event
emergence of eukaryotes 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:bfsParent |
gptkb:West_African_Craton
|
| gptkbp:bfsLayer |
7
|