Chondrichthyans from the Fairpoint Member of the Fox Hills Formation (Maastrichtian), Meade County, South Dakota. Journal of Vertebrate Paleontology, 24(4), 780–793
DOI: 10.1671/0272-4634(2004)024[0780:CFTFMO]2.0.CO;2
Chondrichthyans from the Arkadelphia Formation (Upper Cretaceous: upper Maastrichtian) of Hot Spring County, Arkansas. Journal of Paleontology, 80(4), 700–716
DOI: 10.1666/0022-3360(2006)80[700:CFTAFU]2.0.CO;2