The John Wesley Powell Fossil Track Block—theropod tracks with ornithopod-like morphology from the Early Jurassic Navajo Sandstone, Glen Canyon National Recreation Area, Utah-Arizona. GIW [Internet]. 2023 Oct. 9 [cited 2026 Apr. 18];10:185-222. Available from: https://www.giw.utahgeology.org/index.php/GIW/article/view/128