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Fossil Identification

Tiny fossil sponges? Corals?

rynoceras   06-09-2014 at 23:55

Junior Member
Registered: 06-09-2014
Messages: 1

Hi all -

I found all three of these unusual fossils in Late Ordovician deposits (Decorah) near Cannon Falls, Minnesota. I've been collecting in these deposits for several decades and never before came across this type of fossil until recently. And only these three. They've been accessioned by the Science Museum of Minnesota. As of yet, no one has been able to identify them. Thanks!

[Editted by rynoceras on 06-09-2014 at 00:56 GMT +1]

[Editted by rynoceras on 06-09-2014 at 01:10 GMT +1]

Jeremy   07-09-2014 at 12:53

Senior Member
Registered: 30-01-2006
Messages: 406


the structure as seen on the pictures ressembles a lot with the typical form of Lichenopora, a Bryozoa. Unfortunatly the Ordovician does not fit in this idea.