PADILLA, A. & EBERLE, J.J. & GOTTFRIED, M.D. & SWEET, A.R. & HUTCHISON, J.H. (2014)
A Sand Tiger Shark-Dominated Fauna from the Eocene Arctic Greenhouse. Journal of Vertebrate Paleontology, 34 (6):1307–1316
DOI: 10.1080/02724634.2014.880446