Becker, M. A., J. A. Chamberlain, Jr., and P. W. Stoffer. 2000. Pathologic
tooth deformities in modern and fossil chondrichthians: a consequence
of feeding-related injury. Lethaia 33:103–118.
BECKER, M.A. & CHAMBERLAIN, J.A. 2012 Squalicorax Chips a Tooth: A Consequence of Feeding-Related Behavior from the Lowermost Navesink Formation (Late Cretaceous: Campanian-Maastrichtian) of Monmouth County, New Jersey, USA. Geosciences, 2 (2): 109-129
Have a look at Govender, R. and A. Chinsamy (2013). "Early Pliocene (5 Ma) Shark–Cetacean trophic interaction from Langebaanweg, Western Coast of South Africa." Palaios 28: 270-277. Contact [email protected]