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Showing results for tags 'spiniplatyceras'.
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Found this while sorting matrix for micros. It's shaped like a brachiopod or bivalve shell, strongly concavo-convex. It has widely-spaced spines and very fine growth lines that follow the margin of the shell. I found two of them, and they are about 4 - 5 mm in diameter. My best guess is that they are "larval" shells of the gastropod Spiniplatyceras rarispina that have had the protoconch break off. I can't think of any brachiopods from that locality and time period that would have spines like that. It reminds me of the Permian Echinaurus, lol. Any thoughts? @Tidgy's Dad, @FossilDAWG
Ludwigia posted a gallery image in Members Gallery