| Williams Island Formation | |
|---|---|
| Stratigraphic range: Devonian | |
| Type | Formation |
| Location | |
| Region | Ontario |
| Country | Canada |
The Williams Island Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period.
The Dundee Limestone is a geologic formation in Michigan, Ohio and Ontario. It preserves fossils dating back to the Devonian period.
The Stooping River Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period.
The Long Rapids Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period.
The Hungry Hollow Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period. Remains of the Devonian polychaete Arkonips are known from this formation.
The Arkona Shale is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period.
The Amherstburg Formation is a geologic formation in Ontario, Canada and Michigan, United States. It preserves fossils dating back to the Devonian period.
The Surprise Creek Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.
The Bobcaygeon Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.
The Ottawa Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.
The Cobourg Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period. Technically the formation extends into New York State with Canadian section called Lindsay Formation.
The Lowville Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.
The Pamelia Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.
The Lindsay Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.
The Williamsville Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Dyer Bay Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Ekwan River Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Fossil Hill Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Gasport Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Lockport Formation is a geologic formation in Ontario and New York State. It preserves fossils dating back to the Silurian period. It is named after the city of City of Lockport, New York, where the Erie Canal cuts through and exposes beds of dolomite.
The Manitoulin Dolomite is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
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