Mosasaur tooth, Prognathodon (leiodon) anceps (original, no repair)
Maastrichtian, 70 million years old
Mosasaurs are also known as the T-Rex of the oceans! They could reach a length of almost 17 meters! Mosasaurs had double-hinged jaws and flexible skulls (much like those of snakes), which enabled them to gulp down huge preys almost whole. They had long and powerful bodies whose tails and limbs were adapted for swimming.
Video 1 (link to https://www.youtube.com/watch?v=nhY_SnX2gjE )
Video 2 (link to https://www.youtube.com/watch?v=_xDXrYw3ArE )
12.5 cn (on a 16 x 11.5 cm block) – 690 g