| Ottawa Group | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Group |
| Location | |
| Region | Ontario |
| Country | Canada |
The Ottawa Group is a geologic group in Ontario. It preserves fossils dating back to the Ordovician period.
The Detroit River Group is a geologic group in Michigan and Ohio. 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 Cincinnati Group is a geologic group in Kentucky, Ohio and Indiana. It is Upper Ordovician.
The Lorraine Group is a geologic group in the northeastern United States and southeastern Canada.
The Williams Island Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period.
The Kwataboahegan Formation is a geologic formation in the Moose River and Hudson Bay basins in northern Ontario, containing fossils from the Lower to Middle Devonian period. It is characterized by brown bituminous stromatoporoid-coral floatstone to bindstone and stromatoporoid-coral-crinoid wackestone-packstone-rudstones, interbedded with light grey, bioclastic wackestone-packstone.
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 Aberdeen Lake 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 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 Ekwan River Formation is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Manitoulin Dolomite is a geologic formation in Ontario. It preserves fossils dating back to the Silurian period.
The Bad Cache Rapids Group is a geologic Group in Ontario. It preserves fossils dating back to the Ordovician period.
The Nottawasaga Group is a geologic group in Ontario. It preserves fossils dating back to the Ordovician period.
The Simcoe Group is a geologic group in Ontario. It preserves fossils dating back to the Ordovician period.
The Scarborough Formation is a Pleistocene geologic formation in Ontario.
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