Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Cambrian stage
|
| gptkbp:beganIn |
c. 521 million years ago
|
| gptkbp:endDate |
c. 514 million years ago
|
| gptkbp:followedBy |
gptkb:Cambrian_Stage_2
|
| https://www.w3.org/2000/01/rdf-schema#label |
Stage 3 (Cambrian)
|
| gptkbp:lower_boundary_defined_by |
first appearance of trilobites (proposed)
|
| gptkbp:partOf |
gptkb:Cambrian_Period
|
| gptkbp:precededBy |
Cambrian Stage 4
|
| gptkbp:status |
unnamed (as of 2024)
|
| gptkbp:stratigraphicUnitOf |
gptkb:Series_2
|
| gptkbp:upper_boundary_defined_by |
base of Cambrian Stage 4
|
| gptkbp:bfsParent |
gptkb:Series_2_(Cambrian)
|
| gptkbp:bfsLayer |
7
|