Club Urchin Fossil 1About the Piece AUTHENTIC FOSSIL SPECIMEN Pseudocidaris mammosa, Club Sea Urchin, from the late Jurassic (200 145 Ma) measuring 5x4. 5x3. 5tall. With its bulbous spines, this echinoid variety is perhaps one of the most sculptural in existence and particularly hard to come by in this quality of preservation. Painstakingly cleaned and then reassembled in order to display the animal as it would have been in life. An ancestor to todays sea urchin, it
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