W. B. Gallagher. 2002. Faunal changes across the Cretaceous-Tertiary (K-T) boundary in the Atlantic coastal plain of New Jersey: restructuring the marine community after the K-T mass-extinction event. Catastrophic Events and Mass Extinctions: Impacts and beyond. GSA Special Paper 356:291-301
DOI ↗
R. B. Holmes and H.-D. Sues. 2000. A partial skeleton of the basal mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland. Journal of Paleontology 74(2):309-316
DOI ↗
W. B. Gallagher. 1993. The Cretaceous/Tertiary mass extinction event in the North Atlantic coastal plain. The Mosasaur 5:75-154
D. Baird. 1986. Upper Cretaceous reptiles from the Severn Formation of Maryland. The Mosasaur 3:63-85
D. Baird and G. R. Case. 1966. Rare marine reptiles from the Cretaceous of New Jersey. Journal of Paleontology 40(5):1211-1215