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Showing results for tags 'genal spine'.
I was able to get out and hunt a new Ordovician spot today. A full trip report is coming, but I’m too curious about this one to wait. In the field I grabbed this thinking it was a large trilobite genal spine. After getting it home and doing some quick cleaning and research, I am less convinced. I’m not even sure that any trilobite from this time period/formation would have spines this size (still researching). From a quick glance at a Kentucky Geological Map it looks like I was in the Grant Lake Limestone (Upper Ordovician). I’m probably way off base here. T