J.W.M. Jagt, J. Lindgren, M. Machalski, and A. Radwański. “New Records of the Tylosaurine Mosasaur Hainosaurus from the Campanian-Maastrichtian (Late Cretaceous) of Central Poland”. Netherlands Journal of Geosciences 84 (September 1, 2005): 303 - 306. Accessed February 23, 2025. https://njgjournal.nl/index.php/njg/article/view/11665.