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This specimen was found in the shallow area of a Lake in West Central Indiana. It appears to have a solid limestone bottom half and a spongy/coral type top half?? The majority of the fossils are in the top half as far as I can tell without any prep. I’m not sure if the fossils are a type of bryozoan or maybe Crinoid sections? Any help identifying the top half of the rock as well as the fossils would be appreciated, thanks.