‘Prognathodon cipactli,’ a sea monster from the age of the dinosaurs discovered in Mexico

A six-meter-long sea monster with powerful jaws is the latest prehistoric creature found among the fossil deposits of northern Mexico. The Prognathodon cipactli, an aquatic reptile from the mosasaur family that shared the era with dinosaurs but was not related to them, dominated the seas some 70 million years ago in the late Cretaceous period, just before the mass extinction event that ended the age of the dinosaurs.

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