| Collection | ABDUG University of Aberdeen, Geological Collections |
| Object Name | Siltstone |
| Object Number | ABDUG Rock.7692 |
| Period | Ludlovian |
| Brief Description | Grey siltstone with tipple marks |
| Place Key | Below "Ruth", Marloes, Pembrokeshire, Wales |
| Aquisition Source | C.R. Morey No 68A |
| Aquisition Date | 01/01/1966 |