Crocodylia- Alligators, Crocodiles and Gharials
The order Crocodylia contains medium to large aquatic reptiles. It includes the largest living reptile the Saltwater crocodile There are three families in the order: Alligatoridae, Crocodylidae and Gavialidae. The structure of the snout is the main difference between the families. There are 23 species in the order.