Topic summary
Upper Cretaceous
Extracted from the Wikipedia article Late Cretaceous.
The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the CretaceousPeriod is divided in the geologic time scale. Rock strata from this epoch form the Upper CretaceousSeries. The Cretaceous is named after creta, the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period.