There are 10 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 26174 | S. Holland | Lake Simcoe Area Turinian - Ordovician 4 - Canada | Liberty (1969) |
| 26175 | S. Holland | Lake Simcoe Area, Submember C1A Turinian - Ordovician 4 - Canada | Liberty (1969) |
| 26188 | S. Holland | Lake Simcoe Area, Lower Member, Submember C1B Turinian - Ordovician 4 - Canada | Liberty (1969) |
| 26191 | S. Holland | Lake Simcoe Area, Lower Member, Submember C2 Turinian - Ordovician 4 - Canada | Liberty (1969) |
| 26192 | S. Holland | Type section at Little Bob quarry, south of Bobcaygeon, Lake Simcoe Area Kirkfieldian - Ordovician 4-5 - Canada | Liberty (1969) |
| 27217 | S. Holland | Ottawa Valley Region, Ontario, Ottawa Formation, Paquette Rapids beds Blackriveran/Trentonian - Ordovician 4-5 - Canada | Bolton (1988) |
| 27231 | S. Holland | GSC 97705A, southeast of Clay Bank Katian - Ordovician 5 - Canada | Bolton (1988) |
| 173085 | B. Kröger | Cape Rich road, N of Meaford Richmondian - Ordovician 5 - Canada | Foerste (1924) |
| 173116 | B. Kröger | Snake Island Richmondian - Ordovician 5 - Canada | Foerste (1924) |
| 173135 | B. Kröger | Streetsville Richmondian - Ordovician 5 - Canada | Foerste (1924) |