Guelph Formation
The Guelph Formation is a geologic formation in New York and in Ontario, Canada. It preserves fossils dating back to the Silurian period.
| Guelph Formation | |
|---|---|
| Stratigraphic range: Silurian | |
Stromatolite from the Guelph Formation | |
| Type | Sedimentary |
| Underlies | Vernon, Lockport Group |
| Overlies | Eramosa Member |
| Thickness | 160 feet |
| Lithology | |
| Primary | Dolomite |
| Location | |
| Region | New York |
| Country | United States |
| Type section | |
| Named for | Guelph, Ontario |
| Named by | William Edmond Logan |
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