There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 3301 | A. Miller | Howellites community, Berwyn Hills (Pen-y-planeau Siltstone) (= Was: Howellites community, Berwyn Hills) Soudleyan - Ordovician 4 - United Kingdom | Pickerill and Brenchley (1979) |
| 192387 | P. Wagner | Howellites community, Berwyn Hills (Lower Cwm Rhiwarth) (= Was: Howellites community, Berwyn Hills) Soudleyan - Ordovician 4 - United Kingdom | Pickerill and Brenchley (1979) |