Questions from East and West: What is the mystery of the three dragons of land, sea and air hundreds of millions of years ago? In summary, in the past two to three decades, a series of important discoveries and research, especially feathered dinosaur fossils, have made China undoubtedly one of the centers of dinosaur research in the world. There are about 2,000 named dinosaur species around the world, of which more than 1,000 can be confirmed, while others are controversial.
China ranks first in the number of dinosaur species.