The Discovery of Dinosaur Footprints from the Middle Cretaceous Jiaguan Formation of Qijiang County, Chongqing City

Xing Lida1)，Wang Fengping2)，Pan Shigang3)，Chen Wei4)
1) Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037
2) Lufeng Dinosaur Research Center, Lufeng, 651200
3) Qijiang County Bureau of Land and Resources, Chongqing, 401420
4) Lufeng Dinosaur Museum, Lufeng, 651200
5) Chongqing Nature Museum, Chongqing, 400013

Abstract: The paper describes the dinosaur footprints from Jiaguan Formation, Middle Cretaceous of Qijiang, Chongqing. Some new ichnotaxa, Qijiangpus sinensis ichnogen. et ichnosp. nov. of Ankylosauria, Wupus agilis ichnogen. et ichnosp. nov. of Theropoda, Laoyingshanpus fervens ichnogen. et ichnosp. nov. and Caririchnium lotus ichnosp. nov. of Ornithopoda are established. Among them, Qijiangpus sinensis ichnogen. et ichnosp. nov. is the first record trace fossil of Ankylosauria from China. Caririchnium lotus ichnosp. nov. perfects the ontogeny of Hadrosauroidea.

Key words: Qijiang County; Jiaguan Formation; Middle Cretaceous; Ankylosauria; Ornithopoda; Theropoda

dinosaur footprints from Jiaguan Formation (illustration by Chuang Zhao and Lida Xing)