TheGoblinKing Posted February 20, 2020 Share Posted February 20, 2020 I found this plate near in the upper decorah formation Minnesota (Ordovician period limestone). These chunks are frequently littered with trilobite bits and fragments but this lookk a little odd to me. It has a "knob" or bump structur on one side and a gradual bend on the other. Its still partially covered by coral and debris but most of it is exposed. Any ideas? Link to comment Share on other sites More sharing options...
mikeymig Posted February 20, 2020 Share Posted February 20, 2020 Looks like the genal spine to a trilobite like Ceraurus. Many times I've wondered how much there is to know. led zeppelin Link to comment Share on other sites More sharing options...
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