Sarcosuchus
This is also referred to as the Super Croc. They can grow up to 40 feet in length and weigh up to 15 tons. They are 10 times as large as the heaviest crocodiles alive today. They were said to have lurked on the African rivers during the Cretaceous period. They easily feed on dinosaurs that are unguarded and have unfortunately reached the river where they were hiding.
