Cobourg_Formation

Cobourg Limestone

Cobourg Limestone

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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 be have a total thickness of about 70 m.[1]

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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

References

  1. [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. [2]
    "Ordovician Trilobites of Canada (alphabetized)". American museum of natural history.


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