Martill, D.M. & Ibrahim, N. (2012)
Aberrant rostral teeth of the sawfish Onchopristis numidus from the Kem Kem beds (?early Late Cretaceous) of Morocco and a reappraisal of Onchopristis in New Zealand.
Journal of African Earth Sciences, 64, 71–76 DOI: 10.1016/j.jafrearsci.2011.11.009