J.W.M. Jagt, J. Lindgren, M. Machalski, & A. Radwański. (2005). New records of the tylosaurine mosasaur Hainosaurus from the Campanian-Maastrichtian (Late Cretaceous) of central Poland. Netherlands Journal of Geosciences, 84, 303 - 306. https://doi.org/10.1017/S0016774600021077