There are 3 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 99224 | B. Kröger | Philipsburg, St. Armand limestone Cassinian - Ordovician 1-2 - Canada | Ulrich et al. (1942) |
| 101017 | B. Kröger | Point Levis Cassinian - Ordovician 1-2 - Canada | Ulrich et al. (1944) |
| 189338 | B. Kröger | St. Joseph, east of Point Levis Cassinian - Ordovician 1-2 - Canada | Ulrich et al. (1943) |