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Alright, posted about this yesterday but forgot to try myself. So according to this book I have (called FOSSILS (From DK handbooks) this is a proliserpula or a Serpuloid worm. Now I think that this might actually be a gastropod's inner shell, but the amount of worm fossils in the beach I found might be proving that theory wrong. What is your take on that? Are these worm remnants or A gastropod's inner shell? Tell me in the comments (if you want to) #fossil