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Isorophusella incondita Age: Ordovician Formation: Bobcaygeon Formation Location: Ontario, Canada Size: Plate is 2.9 inches across This specimen is not for sale Click here for similar specimens that are for sale
Here is an unusual multiple plate of edrioasteroids from the Ordovician of Canada. There are SIX specimens of Isorophusella incondita on the slab. Edrioasteroids were primitive echinoderms which consisted of a flexible theca composed of numerous polygonal plates. These edrioasteroids exhibit fine detail. The outer rings of small plates are beautifully displayed, and the ambulacral plates are well defined. The cream-colored fossils contrast nicely with the grey matrix. The edrios are well presented on the rectangular slab of hard limestone that also contains many other fossils. This is a rare multiple plate of these uncommon echinoderms from Canada.