The Alligator sinensis crocodile is a kind of crocodile peculiar to China, mainly distributed in the middle and lower reaches of the Yangtze River. It is an ancient reptile with very few extant animals. Many features of dinosaur reptiles can still be found on the body of the Alligator sinensis, which is often called a living fossil . 
The Alligator sinensis is one of the rarest reptiles in the world
 the Alligator sinensis for people to study the rise and fall of ancient reptiles and ancient geology and biological evolution, are of great significance.