Here is a great specimen of a tooth from a Plesiosaur. Plesiosaurs were large, vicious marine reptiles. They had extremely long necks and fairly lengthy tails. They swam by means of legs and feet that had developed into oarlike paddles. This tooth is from the Cretaceous deposits of Morocco. The large tooth is 3-dimensionally preserved and exhibits wonderful detail. The highly corrugated enamel is beautifully displayed and the tip of the tooth is in very fine condition. The shiny, dark brown tooth contrasts nicely with the sand-colored matrix. This tooth is natural to the block of matrix - it has not been composited or placed upon the block. This is an excellent tooth from a huge Cretaceous marine reptile.