Here is an amazing specimen, 2 "Spiny sharks"   -Acanthodes lopatini Rohon, 1889 The specimen was found in the Early Carboniferous (Tournaisian) age  deposits of  quarry in  the vicinity of the village of Medvedsk,  Nazarovskii District of the Krasnoyarsk Region, Russia. No reconstruction. Shipping worldwide is $30 and will be combined for the bulk order.

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