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Archaeocidaris sp. Age: Pennsylvanian Formation: Winchell Formation Location: Brown County, Texas Size: Plate is 5.0" X 6.2" This specimen is not for sale Click here for similar specimens that are for sale
This is a large plate of spiny sea urchins. There are two Archaeocidaris sp. echinoids from Texas on the slab. This specimen has great detail - most of the fragile ''saw blade-like'' spines are still intact and attached (rare). The urchins are nicely centered on the natural matrix plate. This is a very collectible specimen of spiny Pennsylvanian echinoids.