The Beautiful Animal Photos | Alligator-Amerika | The crocodile is a crocodile in the genus Alligator of the family Alligatoridae. There are two species of crocodile found: American alligator (mississippiensis alligator) and the Chinese alligator (Alligator sinensis).Alligator is a form of the name anglicized lagarto St., the Spanish term for "lizard", which Spanish explorers and early settlers in Florida called the alligator.Crocodiles on a variety of amendments to the successful occupation of the environmental status of these reptiles allowed to remain almost unchanged since the alligator bites Cretaceous.The known for bone-crushing session. In addition, the crocodile has been described as a "living fossil", having been present since 200 million years, at the beginning of the Mesozoic era.