88918 - Top Rare 0.65 Inch Black Squalicorax pristodontus (Crow Shark) Tooth in Natural Matrix Turtle with quite irregular serrations and
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Description
88918 Top Rare 0.65 Inch Black Squalicorax pristodontus (Crow Shark) Tooth in Natural Matrix Turtle with quite irregular serrations and with quite irregular serrations and serrate lateral cusplets Mammals during the Mesozoic era were extremely rare although they had representation within the ecosystems in which dinosaurs reigned