There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 229375 | M. Hopkins | GSC loc. 69775 Tremadocian - Ordovician 1 - Canada | Aitken and Norford (1967) |
| 229376 | M. Hopkins | GSC loc. 69774 Tremadocian - Ordovician 1 - Canada - old id | Aitken and Norford (1967) |
| 229377 | M. Hopkins | GSC loc. 69773 Tremadocian - Ordovician 1 - Canada | Aitken and Norford (1967) |