A new sauropod tracksite from the Lower Cretaceous of Ningxia, Northwestern China, with implications for overtrack preservation

Q Qing Yang (Department of Hepatic Surgery and Liver Transplantation Centre) L Lida Xing J Jens N. Lallensack (Departamento de Ciência da Computação, Universidade Federal de Minas Gerais) L Lin Liu Q Qiyan Chen A Anthony Romilio Q Qi Qi (State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences) J Juan Qi M Ming Zhao X Xi Chen Y Ya Zhao L Lixin Wei Y Yang Wan (National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine)