Large scale dinoturbation in braided stream deposits: evidence from the Cretaceous Tugulu Group of the Hami area, Eastern Xinjiang, China


  • Lida Xing China University of Geosciences, Beijing
  • Martin G. Lockley University of Colorado Denver
  • Zhongdong Li Geophysical Team of Sichuan Bureau of Geological and Mineral Investigation and Exploration
  • Hendrik Klein Saurierwelt Paläontologisches Museum
  • Shaojie Chen The First Team of Hydrogeology and Engineering Geology, Xinjiang Bureau of Geo- Exploration & Mineral Development
  • W. Scott Persons IV Mace Brown Museum of Natural History
  • Miaoyan Wang China University of Geosciences



Sauropod tracks, Braided stream deposits, Pterosaur-Yadan National, Geological Park


Large dinosaur tracks were recently reported from locations in the Pterosaur-Yadan National Geological Park situated about 100 km south of Hami in Xinjiang Province, China. The park comprises a substantial area in a much larger arid region comprising and extensive spectrum of Cretaceous, siliciclastic, Tugulu Group, lithofacies representing proximal, basin margin, alluvial fan and braided stream deposits, grading into alluvial plain, deltaic and lacustrine facies near the depocenter. Due to the difficulties of conducting detailed geological surveys in such a vast and inhospitable area, definitive resolution of the litho-, bio- and chrono-stratigraphy is challenging in some areas, and yet to be published in detail. Nevertheless, the occurrence of large dinosaur tracks and dinoturbated units, here interpreted as sauropodan, in association with root casts, dinosaur bone and fossil wood, points to the potential of this frontier area to yield valuable paleontological information, and show that flora and fauna were found in arid braided stream systems away from the lacustrine depocenters where body fossils are more abundant and better known.


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How to Cite

Xing, L., Lockley, M. G. ., Li, Z. ., Klein, H. ., Chen, S. ., Persons IV, W. S. ., & Wang, M. . (2020). Large scale dinoturbation in braided stream deposits: evidence from the Cretaceous Tugulu Group of the Hami area, Eastern Xinjiang, China. Biosis:Biological Systems, 1(2), 72-84.