Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:characterizedBy |
diversification of marine life
appearance of first vertebrates development of early land plants |
| gptkbp:endDate |
about 419 million years ago
|
| https://www.w3.org/2000/01/rdf-schema#label |
early Paleozoic Era
|
| gptkbp:includes |
gptkb:Cambrian_Period
gptkb:Ordovician_Period gptkb:Silurian_Period |
| gptkbp:partOf |
gptkb:Paleozoic_Era
|
| gptkbp:startDate |
about 541 million years ago
|
| gptkbp:bfsParent |
gptkb:late_Paleozoic_Era
|
| gptkbp:bfsLayer |
7
|