Irongiant97 Posted June 26, 2022 Share Posted June 26, 2022 Link to comment Share on other sites More sharing options...
Irongiant97 Posted June 26, 2022 Author Share Posted June 26, 2022 Found it in northern Minnesota, coleraine formation. Originally thought it was a fossil, no idea what kind, so assumed it was a machine part like a gear. Saw ammonites today, realized they looked identical. Luckily I kept the piece in case I was wrong. Thankfully I was wrong and it was a fossil! Link to comment Share on other sites More sharing options...
Lone Hunter Posted June 26, 2022 Share Posted June 26, 2022 Yep you got it right Link to comment Share on other sites More sharing options...
Rockwood Posted June 26, 2022 Share Posted June 26, 2022 Yes. A fragment of an internal mold (cast) of one of the chambers. Link to comment Share on other sites More sharing options...
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