The crocodylians are a unique order of extant reptiles with a natural history extending back over 200 million years. Throughout their existence they have tried many different bodyforms and lifestyles. Today's living representatives of the crocodylomorph line are rather conservative compared to other contemporary reptiles, but this has not stopped them from becoming top predators in much of their domain.
A list of links to each separate family of crocodylian can be found below, followed by the genus and species. The links above will familiarize visitors with the many different characteristics unique to crocodylians.