Meglei, A.D. & Shimada, K. & Kirkland, J.I. (2013)
Fossil Vertebrates from the Middle Graneros Shale (Upper Cretaceous: Middle Cenomanian) in Southeastern Nebraska.
Transactions of the Kansas Academy of Science, 116(3–4), 129–135 DOI: 10.1660/062.116.0304