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Orthocone Ammonoid or Orthocone Nautiloid


Danewf

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Newbie here.  Discovered this fossil on the shoreline of Bruce Peninsula, Ontario Canada, Lake Huron side in Dolomite rock.  Is it Orthocone Ammonoid or Orthocone Nautiloid or something else?  I believe these are common finds in the area but this one is much bigger than others I have seen and the creatures shell appears partially fossilized rather than just an impression.  Any insight appreciated including possible age.  Thank you.

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Orthocone nautiloid, Silurian in age (as is much of the Bruce Peninsula). 

...How to Philosophize with a Hammer

 

 

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