From how long the crocodile species on Earth?

Crocodilians are from Archosaur family which ruled the earth in Cretaceous period - also known as the Age of Reptiles. Near about 220 million years ago they divided into two evolutionary lines - one into crocodiles and another into dinosaurs and birds. Along with the dinosaurs and some of those first birds, many crocodilian species have gone extinct.  Deinosuchus is an ancient and also the largest crocodilian, growing up to 15 metres . This cold blooded animal has adapted perfectly on land and water making it a successful species of the time. Today, crocodiles and birds are the only remaining Archosaurs. The crocodile doesn’t possess jaw to cut the fresh of the prey they bite the preys body and rotate around itself to tear the fresh.