Dakosaurus: The Theropod-Headed Sea-Croc. - 15 ft, Late Jurassic to Earliest Cretaceous. Fossils referable to Dakosaurus have been found in England, France/Germany/Poland/Russia /Argentina, Mexico, Switzerland
Carcharocles megalodon Snacking on a Platybelodon in Miocene Waters. This image depicts the probably rare but plausible encounter between the giant shark Carcharocles (jaw diameter estimated at eleven feet) and a medium-sized proboscidean, Platybelodon.
Spinosaurus may be the larges Theropod to ever stalk the Prehistoric Americas and believed to be even larger than T-Rex. Recently (late it was determined to be the first and only known aquatic dinosaur.
Paraceratherium is an extinct genus of gigantic hornless rhinoc-eros-like mammals endemic to Eurasia & Asia during the Oligocene epoch. It is regarded as the largest land mammal known, w/the largest species having an estimated mean adult mass of 12 tons.