BenK Posted January 27, 2022 Share Posted January 27, 2022 Is this a stretched out, coiled coral? Burlington formation, eastern Missouri. Thanks! Link to comment Share on other sites More sharing options...
fifbrindacier Posted January 27, 2022 Share Posted January 27, 2022 Hi, i also think it's a coral. 1 "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
oyo Posted January 28, 2022 Share Posted January 28, 2022 (edited) Coral, yes. Internal mold, seems to me. Edited January 28, 2022 by oyo Link to comment Share on other sites More sharing options...
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