Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
geological formation
|
| gptkbp:beganIn |
433.4 million years ago
|
| gptkbp:endDate |
430.5 million years ago
|
| gptkbp:followedBy |
gptkb:Telychian_Age
|
| https://www.w3.org/2000/01/rdf-schema#label |
Sheinwoodian Age
|
| gptkbp:lowerBoundaryDefinedBy |
first appearance of graptolite Cyrtograptus centrifugus
|
| gptkbp:namedAfter |
Sheinwood, England
|
| gptkbp:partOf |
gptkb:Silurian_Period
gptkb:Wenlock_Epoch |
| gptkbp:precededBy |
gptkb:Homerian_Age
|
| gptkbp:usedIn |
gptkb:International_Commission_on_Stratigraphy_timescale
|
| gptkbp:bfsParent |
gptkb:Wenlock_Epoch
|
| gptkbp:bfsLayer |
7
|