The Natural Canvas Fossils / 5333 Fossil Echinoderms - Echinoids, Crinoids, Cystoids, Carpoids, Starfish and other extinct forms Purchase here: ncanvas@aol.com

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Pleurocystites

Ordovician, Ontario, Canada

Pleurocystites squamosus -- Fine near-complete 4.7cm cystoid on 7cm matrix. Very nice detail

$74