Zhao Xijin (赵喜进; born c. 1935 died July 21, 2012) was a Chinese paleontologist notable for having named numerous dinosaurs.
He was a professor at Beijing's Institute of Vertebrate Paleontology and Paleoanthropology.
This involved a rock quarry that led them to finding 25 skeletons of the species Sinornithomimus dongi.
The majority of the fossils found appeared to be from the Late Cretaceous period.
[7] Besides the above, Zhao Xijin also named the family Mamenchisauridae (with Young Chung Chien, 1972).