Jump to content

Dianna123

Recommended Posts

I found these two fossils on a beach near the Mackinac bridge in Lake Michigan, USA. Can anyone tell me what they are? The first specimen with the flat dark inclusion is about 5 cm. The second specimen with the many small lines and holes is about 4 cm. Thanks for your help. 

1E892272-CF47-4081-BC1F-2DCB8BA4ED2C.jpeg

9715F6B0-8682-493D-ABD5-105C0BF8344B.jpeg

Link to comment
Share on other sites

I would say the first is a cross section of a rugose coral, and the second one is an example of a tabulate (colonial) coral. My guess is that they would be Devonian in age. 

  • I found this Informative 6

...How to Philosophize with a Hammer

 

 

Link to comment
Share on other sites

Agreed. Very nice finds.

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...