Sarcosuchus imperator

Sarcosuchus was a large crocodilian from the mid cretaceous period, it looked like a regular crocodile but with thinner jaws but not as thin as spinosaurus's, it is only 10 feet shorter than the 50 foot long spinosaurus. making it the second largest crocodilian to have ever lived. it went extinct at the same time as spinosaurus, rugops, and carcaradontosaurus as the Sahara desert formed making it impossible for any large animal to live there.