Xing, Lida, and Zhang Yu. “A Preliminary Review of Dinosaur Track Assemblages from the Tuchengzi Formation in North China”. Biosis: Biological Systems 3, no. 1 (March 23, 2022): e002. Accessed September 21, 2024. https://ojs.bdtopten.com/33015.eaapublishing/index.php/biosis/article/view/165.