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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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Wooster’s Fossil of the Week: A crinoid calyx from the Lower Carboniferous of Iowa

In honor of Echinoderm Week for my Invertebrate Paleontology course, we have a beautiful crinoid calyx (or crown, or just “head”) on a slab from the Burlington Limestone (Lower Carboniferous, Osagean) found near Burlington, Iowa. I inherited this fossil when I arrived at Wooster, so I have no idea who collected it or when. The […]

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