SilurianSalamander Posted January 25, 2023 Share Posted January 25, 2023 Found these weird spirals in this chunk of agatized rock. Devonian from Bradford beach in Milwaukee. Thanks! Link to comment Share on other sites More sharing options...
TqB Posted January 25, 2023 Share Posted January 25, 2023 (edited) Probably gastropod. It's too early for serpulids, and the similar looking microconchids (that were once thought to be annelids) are smaller and encrusting. Edited January 25, 2023 by TqB 2 Tarquin Link to comment Share on other sites More sharing options...
rocket Posted January 25, 2023 Share Posted January 25, 2023 yep, too old for serpulids, the earlies sure ones are triassic age 1 Link to comment Share on other sites More sharing options...
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