|“||It's not a crocodile, even though it looks like one.||„|
|— Allen, describing Sarcosuchus|
Sarcosuchus was the second biggest crocodilian that has ever lived, after the giant crocodilian Deinosuchus. Growing far larger than any modern crocodile, these were remarkable reptilian creatures that measured over 40 feet (12 meters) in length and weighed 6–8 tons. Even though they looked like crocodiles, they weren't crocodiles but they were however close cousins of crocodiles.
Additionally, Sarcosuchus had an overall appearance that was identical to that of a Gharial rather than a proper crocodile, especially with its long and narrow snout, for a large creature.
Sarcosuchus did behave like its modern crocodilian relatives: the crocodiles and alligators. They also often basked on the bank of a river or a lake and also hunted animals like Iguanodon and even young Argentinosaurus could be taken by this predatory creature.