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Showing results for tags 'northern iowa'.
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In order to ID a find of mine, I came across an article that appears to have my answer. Does anyone possibly have access to this? I can't seem to get it: Carabocrinid crinoids from the Ordovician of northern Iowa and southern Minnesota Thanks, Mike
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Here is a rock that I have had in my basement since summer. It has finally made it to Forum members to voice their opinion on. I know it is NOT a rugosa coral (a joke for those who saw my previous ID request). I am thinking possibly a stromatolite? Or because of the karst topography in the region, it may be a type of flowstone from a cave. Or maybe one of those rocks to put out in the garden. The bottom of the specimen: The top: Side views:
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- karst cave rock?
- northern iowa
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