La présence de fossiles marins dans le Crétacé terminal des Andes centrales et ses conséquences paléogéographiques. Palaeogeography, Palaeoclitnatology, Palaeoecology, 102, 283–319
Sedimentology, palaeontology, biostratigraphy and correlation of the Late Cretaceous Vilquechico Group of southern Peru. Cretaceous Research, 14, 623–661
The Upper Cretaceous - Lower Tertiary marine to continental transition in the Bagua basin, northern Peru. Paleontology, biostratigraphy, radiometry, correlations. Newsletters on Stratigraphy, 19(3), 143–177