This is the "Fossil Friday" post #89. Expect this to be a somewhat regular feature of the website. We will post any fossil pictures you send in to [email protected]. Please include a short description or story. Check the #FossilFriday Twitter hash tag for contributions from around the world!
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A crinoid from Green Bay, Wisconsin is up for today's post. Too bad there isn't a green and gold G on the side of it! This absolutely stunning example of Pleuocystites squamosus comes from ESCONI member Dan Damrow. P. squalmosus is a cystoid. Cystoids are related to crinoids and blastoids. They went extinct at the end of the Devonian. Dan was the owner of the "Rib River Fossil" booth at ESCONI and Chicagoland shows for many years. Thanks, Dan! Here is his description of the fossil.
Here is just one of my favorite echinoderms in my collection. A museum grade Pleuocystites squamosus from the famous but now flooded, Duck Creek Quarry in Howard, Wi. Howard is just outside of Green Bay. The Duck Creek Quarry, in its hay day, was renowned for incredible echinoderms and trilobites of the Middle Ordovician. While Pleurocycites is known from numerous localities, specimens from this quarry were incredible.
