Statements (13)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:geological_formation | 
| gptkbp:endDate | 440.8 million years ago | 
| gptkbp:followedBy | Hirnantian age | 
| gptkbp:location | Dob's Linn, Scotland | 
| gptkbp:namedAfter | gptkb:Rhuddlan | 
| gptkbp:partOf | gptkb:Silurian_period gptkb:Llandovery_epoch | 
| gptkbp:precededBy | gptkb:Aeronian_age | 
| gptkbp:startDate | 443.8 million years ago | 
| gptkbp:stratotypeLocation | gptkb:Wales | 
| gptkbp:bfsParent | gptkb:Llandovery_epoch | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | Rhuddanian age |