|The Crocodilia are an order of large, predatory, semiaquatic reptiles. They appeared 83.5 million years ago in the Late Cretaceous period and are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria. Large, solidly built, lizard-like reptiles, crocodilians have long flattened snouts, laterally compressed tails, and eyes, ears, and nostrils at the top of the head. They swim well and can move on land in a "high walk" and a "low walk", while smaller species are even capable of galloping.
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|American alligator||American crocodile||Caiman||Chinese alligator|
|Cuban crocodile||†Deinosuchus||False gharial||Freshwater crocodile|
|Gharial||Nile crocodile||Orinoco crocodile||†Pristichampsus|
|†Quinkana||Saltwater crocodile||Slender-snouted crocodile||†Trilophosuchus|
Non identified crocodiles