The
Late Cretaceous (100.5–66
Ma) is the younger of two
epochs into which the
Cretaceous period is divided in the
geologic timescale. Rock strata from this epoch form the
Upper Cretaceous series. The Cretaceous is named after the white limestone known as
chalk which occurs widely in northern France and is seen in the white cliffs of south-eastern England, and which dates from this time.