Wedel, Matt, and Mike Taylor. “The Biomechanical Significance of Bifurcated Cervical Ribs in Apatosaurine Sauropods”. Vertebrate Anatomy Morphology Palaeontology 11 (November 26, 2023): 91–100. Accessed November 5, 2025. https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29394.