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Description
The Helicoprion is an odd looking species of shark whose fossils have been found throughout the world's oceans. Known for its odd tooth whorl found on its lower jaw, it probably had a crustacean like diet.

Description
The Helicoprion is an odd looking species of shark whose fossils have been found throughout the world's oceans. Known for its odd tooth whorl found on its lower jaw, it probably had a crustacean like diet.