At the Falises (cliff line) of Villers sur Mer the strata of upper Callovian, lower and middle Oxfordian and Cretaceous are visible. The cliff line extends to Houlgate. Well shaped fossiles are quite frequent. Famous paleontologists such as Georges CUVIER, Henri and Robert DOUVILLE and Geoffroy SAINT-HILAIRE did research in this cliff line called ´Falaises des Vaches-Noires´. Eponymous are the big dark colored rocks at the shore which look like a herd of black cows when it´s hazy and the visitor has some distance to them.
Sequence of strata:
Marl of Dives;
Upper Callovian, layer thickness 8-10 m is visible at the bottom of the Falaises. Only under favourable circumstances at low tide this layer is visible on the seaside. The formerly visible marl strata are usually covered with sand nowadays.
Zone of Lamberticeras lamberti.
Marl of Villers:
Lower Oxfordian, layer thickness 25-27 m, zone of Quenstedtoceras mariae.
Iron oolite of Villers;
Oxfordian, layer thickness 2-2,5 m.
Zone of Cardioceras cordatum.
Layers of middle Oxfordian, layer thickness 15-18 m, zone of Arisphinctes plicatilis, subzone of Vertebriceras vertebrale.
Oolite of Trouville;
Middle Oxfordian, layer thickness 6-15 m, zone of Arisphinctes plicatilis, subzone of Dichotomosphinctes antecedens.
Coral rag of Trouville; Image copyright: Erich W. Albes, image used under license to MBL (micro*scope).
Middle Oxfordian, layer thickness up to 3,5 m;