There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 12180 | M. Patzkowsky | White Head Fm, Perce, Llandovery, 62F28 - Patzkowsky Llandovery - Silurian 1 - Canada | Sheehan and Lesperance (1981) |
| 12298 | M. Patzkowsky | White Head Fm, Perce, U. Llandovery, 69L10 - Patzkowsky Llandovery - Silurian 1 - Canada | Sheehan and Lesperance (1981) |