Cobourg Limestone

Cobourg Formation
Stratigraphic range: Ordovician
Type	Formation
Location
Region	Ontario
Country	Canada

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 formation was named by Raymond (1921). The Cobourg formation was estimated to have a total thickness of about 70 m. ^[1]

Fossil found in the Cobourg Formation

• An example of a trilobite that lived during the Upper Ordovician, Flexicalymene croneisi. Found in 1941, in the Cobourg formation. ^[2]

See also

• Earth sciences portal
• Ontario portal
• Paleontology portal

• Colborne quarry: a limestone near Lake Ontario and is located in the Cobourg Formation.
• List of fossiliferous stratigraphic units in Ontario

References

1. Lee, P. J.; Winder, C. G. (1967-06-01). "FABRIC OF A MIDDLE ORDOVICIAN LIMESTONE AT COLBORNE, ONTARIO" . Canadian Journal of Earth Sciences. 4 (3): 529–540. doi:10.1139/e67-028. ISSN   0008-4077.
2. "Ordovician Trilobites of Canada (alphabetized)". American museum of natural history.

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 8 July 2014.
• Various information of the Cobourg Formation and Colborne quarry. "FABRIC OF A MIDDLE ORDOVICIAN LIMESTONE AT COLBORNE, ONTARIO" Retrieved 9 February 2024.
• "Ordovician Trilobites of Canada (alphabetized)" Retrieved 9 February 2024.