Macfadden, B.J. & Labs-Hochstein, J. & Quitmyer, I. & Jones, D.S. (2004)
Incremental growth and diagenesis of skeletal parts of the lamnoid shark Otodus obliquus from the early Eocene (Ypresian) of Morocco.
Palaeogeography, Palaeoclimatology, Palaeoecology, 206(3–4), 179–192 DOI: 10.1016/j.palaeo.2004.01.002