Toronto Don River Fossil

[amaanthawer]

Hey everyone, 

 

I found this fossil along the Don River yesterday. I believe there's a crinoid stem and coral fossil in limestone from Georgian Bay Formation. Is this right? 

Please let me know

 

Thanks so much! 

 

 

[Ludwigia]

You're right about the crinoid impression, but I'm not so sure about the coral. If those are 2 different impressions that you are showing, then I would say that they are both from a crinoid.

[Rockwood]

What you are thinking may be coral (left of center, second photo) is a crinoid column section like the first. The difference is that it contains a cast of the lumen.