Late Cretaceous (100mya - 65mya) refers to the second half of the Cretaceous Period, named after the famous white chalk cliffs of southern England, which date from this time. Rocks deposited during the Late Cretaceous Period are referred to as the Upper Cretaceous Series. Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.