Lecuyer, C. & Grandjean, P. & O'Neil, J.R. & Cappetta, H. & Martineau, F. (1993)
Thermal excursions in the ocean at the Cretaceous-Tertiary boundary (Northern Morocco) ∂O18 records of phosphatic fish debris.
Palaeogeography, Palaeoclimatology, Palaeoecology, 105(3–4), 235–243