^Steven E. Jasinski, Andrew B. Heckert, Ciara Sailar, Asher J. Lichtig, Spencer G. Lucas and Peter Dodson. 2022. A Softshell Turtle (Testudines: Trionychidae: Plastomeninae) from the uppermost Cretaceous (Maastrichtian) Hell Creek Formation, North Dakota, USA, with Implications for the Evolutionary Relationships of Plastomenines and Other Trionychids. Cretaceous Research. In Press, 105172. DOI: 10.1016/j.cretres.2022.105172