Leopleurodon

it was a marine reptile of the jurassic period. it was the largest carnivore ever to live on the planet. it preyed on icthyosaurs like opthalmosaurus, plesiosaurs like elazmosaurus, and even other leopleurodon. in the cruel sea, a leopleurodon bites a pregnant opthalmosaurus in half. later, it encounters another leopleurodon, and gets badly injured, eventually getting stranded.