Fossilized Clam Shell?

[Joyce turton]

Hi All,

Actually this was found yesterday in Petawawa, Ontario. Any ideas?

Let me know. Thanks!

 

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[PikesPeakCharlie]

I don’t believe it’s a clam or a fossil , looks like a pretty layered sedimentary rock, but I’m not a geologist either ��

 

[RVRoamer74]

I have not a clue. But a cool find. Congrats!

 

[Kray Gelder]

I think it's a shell fragment. If it was a sedimentary rock, the back side would show the layers also. It may be a fossil, but probably not from your area. It may have been hauled in, in a load of limestone or gravel from elsewhere. The ancient marine exposures in your area are mainly ordovician in age (ended 438 mil. years ago ) and predate that clam.

 

[MadTom]

Clam, but don’t think it’s that old

 

[Joyce turton]

Champlain Sea

I think it's a shell fragment. If it was a sedimentary rock, the back side would show the layers also. It may be a fossil, but probably not from your area. It may have been hauled in, in a load of limestone or gravel from elsewhere. The ancient marine exposures in your area are mainly ordovician in age (ended 438 mil. years ago ) and predate that clam.

Hi

The Champlain Sea covered this area 7000 to 10000 years ago. How old do you think this might be?

 

[Kray Gelder]

Hi

The Champlain Sea covered this area 7000 to 10000 years ago. How old do you think this might be?

All right, then. Learn something here every day. I had referred to a geologic map of your area for my previous reply. I had never read of the Champlain Sea, a temporary 3,000 year long influx of the sea in your area, after the retreat of the glaciers. Your shell could very well be from that period, don't you think?

 

[Joyce turton]

It is just so colorful on top to be so old. How can I confirm if this is a fossil.

 

[Joyce turton]

I suspect so but was looking for confirmation...

Thanks!

 

[WNCsweeper]

This is fosilized clam shell