mosasaurus, huge ocean lizard, extinct mosasaur between 70 and 66 million years ago 3d

age america ancient animal aquatic archegosaurus basilosaurus big blue carnivore carnivorous chordate creature cretaceous cutout dinosaur europe extinct fish hunter illustration jurassic koronosaurus large life liopleurodon lizards maastrichtian marine mesosaurus metriorhynchus monster mosasaur mosasauridae mosasaurinae mosasaurus ocean paleontology predator prehistoric primitive reptile sea swimming tylosaurinae underwater water wildlife